{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-27614", "tracking": { "current_release_date": "2026-03-23T03:39:35.925146Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-27614", "initial_release_date": "2026-02-25T03:25:12.581793Z", "revision_history": [ { "date": "2026-02-25T03:25:12.581793Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-02-25T03:25:19.371719Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-02-25T03:38:51.183367Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (3).| CWES updated (1)." }, { "date": "2026-02-25T03:38:57.478298Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-02-25T07:35:37.227365Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-02-25T15:13:48.195791Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-02-25T15:13:50.240549Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-02-25T16:39:54.157676Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (5).| CWES updated (1)." }, { "date": "2026-02-25T16:40:02.940944Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-02-25T18:35:37.805257Z", "number": "10", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (46).| Product Identifiers created (53).| Products created (8).| References created (4).| CWES updated (1)." }, { "date": "2026-02-25T20:38:49.492168Z", "number": "11", "summary": "Unknown change." }, { "date": "2026-02-26T00:14:38.441933Z", "number": "12", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (60).| References created (5).| CWES updated (1)." }, { "date": "2026-02-27T19:25:29.934407Z", "number": "13", "summary": "Products connected (1).| Product Identifiers created (1).| Exploits created (1)." }, { "date": "2026-02-27T19:25:32.008837Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-03-02T15:50:04.854262Z", "number": "15", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| Products created (1)." }, { "date": "2026-03-02T15:50:08.687235Z", "number": "16", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:40:31.390221Z", "number": "17", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:40:34.652028Z", "number": "18", "summary": "NCSC Score updated." } ], "status": "interim", "version": "18" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/0.0.1", "product": { "name": "vers:unknown/0.0.1", "product_id": "CSAFPID-4778960", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.0.1" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.0", "product": { "name": "vers:unknown/0.1.0", "product_id": "CSAFPID-3749409" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.1", "product": { "name": "vers:unknown/0.1.1", "product_id": "CSAFPID-3749410" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.10", "product": { "name": "vers:unknown/0.1.10", "product_id": "CSAFPID-3749411" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.11", "product": { "name": "vers:unknown/0.1.11", "product_id": "CSAFPID-3749412" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.12", "product": { "name": "vers:unknown/0.1.12", "product_id": "CSAFPID-3749413", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.1.12" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.13", "product": { "name": "vers:unknown/0.1.13", "product_id": "CSAFPID-3749414", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.1.13" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.14", "product": { "name": "vers:unknown/0.1.14", "product_id": "CSAFPID-3749415", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.1.14" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.15", "product": { "name": "vers:unknown/0.1.15", "product_id": "CSAFPID-3749416", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.1.15" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.16", "product": { "name": "vers:unknown/0.1.16", "product_id": "CSAFPID-3749417", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.1.16" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.17", "product": { "name": "vers:unknown/0.1.17", "product_id": "CSAFPID-3749418", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.1.17" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.18", "product": { "name": "vers:unknown/0.1.18", "product_id": "CSAFPID-3749419", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.1.18" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.19", "product": { "name": "vers:unknown/0.1.19", "product_id": "CSAFPID-3749420", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.1.19" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.2", "product": { "name": "vers:unknown/0.1.2", "product_id": "CSAFPID-3749421" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.20", "product": { "name": "vers:unknown/0.1.20", "product_id": "CSAFPID-3749422", "product_identification_helper": { "purl": "pkg:pypi/bugsink@0.1.20" } } }, { "category": "product_version_range", "name": "vers:unknown/0.1.3", "product": { "name": "vers:unknown/0.1.3", "product_id": "CSAFPID-3749423" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.4", "product": { "name": "vers:unknown/0.1.4", "product_id": "CSAFPID-3749424" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.5", "product": { "name": "vers:unknown/0.1.5", "product_id": "CSAFPID-3749425" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.6", "product": { "name": "vers:unknown/0.1.6", "product_id": "CSAFPID-3749426" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.7", "product": { "name": "vers:unknown/0.1.7", "product_id": "CSAFPID-3749427" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.8", "product": { "name": "vers:unknown/0.1.8", "product_id": "CSAFPID-3749428" } }, { "category": "product_version_range", "name": "vers:unknown/0.1.9", "product": { "name": "vers:unknown/0.1.9", "product_id": "CSAFPID-3749429" } }, { "category": "product_version_range", "name": "vers:unknown/1.0.0", "product": { "name": "vers:unknown/1.0.0", "product_id": "CSAFPID-3749430", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.0.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.1", "product": { "name": "vers:unknown/1.0.1", "product_id": "CSAFPID-3749431", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.0.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.0", "product": { "name": "vers:unknown/1.1.0", "product_id": "CSAFPID-3749432", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.1.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.1", "product": { "name": "vers:unknown/1.1.1", "product_id": "CSAFPID-3749433", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.1.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.2", "product": { "name": "vers:unknown/1.1.2", "product_id": "CSAFPID-3749434", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.1.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.2.0", "product": { "name": "vers:unknown/1.2.0", "product_id": "CSAFPID-3749435", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.2.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.3.0", "product": { "name": "vers:unknown/1.3.0", "product_id": "CSAFPID-3749436", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.3.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.4.0", "product": { "name": "vers:unknown/1.4.0", "product_id": "CSAFPID-3016041", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.4.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.4.1", "product": { "name": "vers:unknown/1.4.1", "product_id": "CSAFPID-3016034", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.4.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.4.2", "product": { "name": "vers:unknown/1.4.2", "product_id": "CSAFPID-3016035", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.4.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.4.3", "product": { "name": "vers:unknown/1.4.3", "product_id": "CSAFPID-5184655", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.4.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.0", "product": { "name": "vers:unknown/1.5.0", "product_id": "CSAFPID-3016029", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.5.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.1", "product": { "name": "vers:unknown/1.5.1", "product_id": "CSAFPID-3016036", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.5.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.2", "product": { "name": "vers:unknown/1.5.2", "product_id": "CSAFPID-3016033", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.5.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.3", "product": { "name": "vers:unknown/1.5.3", "product_id": "CSAFPID-3016039", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.5.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.4", "product": { "name": "vers:unknown/1.5.4", "product_id": "CSAFPID-3016038", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.5.4" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.5", "product": { "name": "vers:unknown/1.5.5", "product_id": "CSAFPID-5184656", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.5.5" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.0", "product": { "name": "vers:unknown/1.6.0", "product_id": "CSAFPID-3016030", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.6.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.1", "product": { "name": "vers:unknown/1.6.1", "product_id": "CSAFPID-3016026", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.6.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.2", "product": { "name": "vers:unknown/1.6.2", "product_id": "CSAFPID-3016032", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.6.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.3", "product": { "name": "vers:unknown/1.6.3", "product_id": "CSAFPID-3016031", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.6.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.4", "product": { "name": "vers:unknown/1.6.4", "product_id": "CSAFPID-5184657", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.6.4" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.0", "product": { "name": "vers:unknown/1.7.0", "product_id": "CSAFPID-3016040", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.7.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.1", "product": { "name": "vers:unknown/1.7.1", "product_id": "CSAFPID-3016037", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.7.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.2", "product": { "name": "vers:unknown/1.7.2", "product_id": "CSAFPID-3016028", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.7.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.3", "product": { "name": "vers:unknown/1.7.3", "product_id": "CSAFPID-3016027", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.7.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.4", "product": { "name": "vers:unknown/1.7.4", "product_id": "CSAFPID-5184658", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.7.4" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.5", "product": { "name": "vers:unknown/1.7.5", "product_id": "CSAFPID-5181022", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.7.5" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.6", "product": { "name": "vers:unknown/1.7.6", "product_id": "CSAFPID-5181023", "product_identification_helper": { "purl": "pkg:pypi/bugsink@1.7.6" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.0", "product": { "name": "vers:unknown/2.0.0", "product_id": "CSAFPID-5181024", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.0" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.0a1", "product": { "name": "vers:unknown/2.0.0a1", "product_id": "CSAFPID-5181025", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.0a1" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.1", "product": { "name": "vers:unknown/2.0.1", "product_id": "CSAFPID-5181026", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.1" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.10", "product": { "name": "vers:unknown/2.0.10", "product_id": "CSAFPID-5708549", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.10" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.11", "product": { "name": "vers:unknown/2.0.11", "product_id": "CSAFPID-5708550", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.11" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.12", "product": { "name": "vers:unknown/2.0.12", "product_id": "CSAFPID-5708551", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.12" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.2", "product": { "name": "vers:unknown/2.0.2", "product_id": "CSAFPID-5181027", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.2" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.3", "product": { "name": "vers:unknown/2.0.3", "product_id": "CSAFPID-5181028", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.3" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.4", "product": { "name": "vers:unknown/2.0.4", "product_id": "CSAFPID-5181029", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.4" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.5", "product": { "name": "vers:unknown/2.0.5", "product_id": "CSAFPID-5181030", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.5" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.6", "product": { "name": "vers:unknown/2.0.6", "product_id": "CSAFPID-5708552", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.6" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.7", "product": { "name": "vers:unknown/2.0.7", "product_id": "CSAFPID-5708553", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.7" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.8", "product": { "name": "vers:unknown/2.0.8", "product_id": "CSAFPID-5708554", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.8" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0.9", "product": { "name": "vers:unknown/2.0.9", "product_id": "CSAFPID-5708555", "product_identification_helper": { "purl": "pkg:pypi/bugsink@2.0.9" } } }, { "category": "product_version_range", "name": "vers:unknown/<2.0.13", "product": { "name": "vers:unknown/<2.0.13", "product_id": "CSAFPID-5700853", "product_identification_helper": { "cpe": "cpe:2.3:a:bugsink:bugsink:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=0|<2.0.13", "product": { "name": "vers:unknown/>=0|<2.0.13", "product_id": "CSAFPID-5708556" } } ], "category": "product_name", "name": "bugsink" } ], "category": "vendor", "name": "bugsink" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<2.0.13", "product": { "name": "vers:unknown/<2.0.13", "product_id": "CSAFPID-5753598" } } ], "category": "product_name", "name": "bugsink" } ], "category": "vendor", "name": "unknown" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-27614", "cwe": { "id": "CWE-79", "name": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')" }, "notes": [ { "category": "description", "text": "Bugsink is a self-hosted error tracking tool. In versions prior to 2.0.13, an unauthenticated attacker who can submit events to a Bugsink project can store arbitrary JavaScript in an event. The payload executes only if a user explicitly views the affected Stacktrace in the web UI. When Pygments returns more lines than it was given (a known upstream quirk that triggers with Ruby heredoc-style input), `_pygmentize_lines()` in `theme/templatetags/issues.py:75-77` falls back to returning the raw input lines. `mark_safe()` at line 111-113 is then applied unconditionally - including to those unsanitized raw lines. Since DSN endpoints are public by Sentry protocol, no account is needed to inject. The payload sits in the database until an admin looks at the event. Successful exploitation requires that the attacker to be able to submit events to the project (i.e. knows the DSN or can access a client that uses it), the Bugsink ingest endpoint is reachable to the attacker, and an administrator explicitly views the crafted event in the UI. Under those conditions, the attacker can execute JavaScript in the administrator’s browser and act with that user’s privileges within Bugsink. Version 2.0.13 fixes the vulnerability.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-27614" }, { "category": "description", "text": "Bugsink is a self-hosted error tracking tool. In versions prior to 2.0.13, an unauthenticated attacker who can submit events to a Bugsink project can store arbitrary JavaScript in an event. The payload executes only if a user explicitly views the affected Stacktrace in the web UI. When Pygments returns more lines than it was given (a known upstream quirk that triggers with Ruby heredoc-style input), `_pygmentize_lines()` in `theme/templatetags/issues.py:75-77` falls back to returning the raw input lines. `mark_safe()` at line 111-113 is then applied unconditionally - including to those unsanitized raw lines. Since DSN endpoints are public by Sentry protocol, no account is needed to inject. The payload sits in the database until an admin looks at the event. Successful exploitation requires that the attacker to be able to submit events to the project (i.e. knows the DSN or can access a client that uses it), the Bugsink ingest endpoint is reachable to the attacker, and an administrator explicitly views the crafted event in the UI. Under those conditions, the attacker can execute JavaScript in the administrator’s browser and act with that user’s privileges within Bugsink. Version 2.0.13 fixes the vulnerability.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-27614" }, { "category": "description", "text": "### Summary\n\nAn unauthenticated attacker who can submit events to a Bugsink project can store arbitrary JavaScript in an event.\nThe payload executes only if a user explicitly views the affected Stacktrace in the web UI.\n\n### Details\n\nWhen Pygments returns more lines than it was given (a known upstream quirk that triggers with Ruby heredoc-style input), `_pygmentize_lines()` in `theme/templatetags/issues.py:75-77` falls back to returning the raw input lines. `mark_safe()` at line 111-113 is then applied unconditionally - including to those unsanitized raw lines. Since DSN endpoints are public by Sentry protocol, no account is needed to inject. The payload sits in the database until an admin looks at the event.\n\n```python\n# issues.py:75-77 - fallback path, no escaping\nif len(pygmented) != len(lines):\n return lines # raw HTML returned here\n\n# issues.py:111-113 - unconditional mark_safe\nreturn [mark_safe(line) for line in result]\n```\n\n### Operational Signals\n\nExploitation attempts are likely to generate the diagnostic event:\n\n```\n\"Pygments line count mismatch, falling back to unformatted code\"\n```\n\nInstallations that monitor Bugsink with Bugsink (or otherwise alert on internal errors)\nmay see this message as an issue. While the condition can occur benignly, unexpected\noccurrences, especially from unusual languages (specifically ruby), warrant review.\n\n\n### PoC\n\nSend a Sentry event to `/api//store/` with a valid DSN:\n\n```python\nimport requests\n\npayload = {\n \"exception\": {\"values\": [{\"stacktrace\": {\"frames\": [{\n \"filename\": \"app.rb\",\n \"lineno\": 2,\n \"pre_context\": [\"<<~HEREDOC\", \" foo\", \"HEREDOC\"],\n \"context_line\": \"\",\n \"post_context\": []\n }]}}]}\n}\n\nrequests.post(\n \"http://bugsink-host/api//store/\",\n json=payload,\n headers={\"X-Sentry-Auth\": \"Sentry sentry_key=, sentry_version=7\"}\n)\n```\n\nOpen the event in the bugsink UI as any admin. Cookie exfiltrates immediately.\n\n### Impact\n\nThis is a stored XSS vulnerability.\n\nSuccessful exploitation requires:\n\n* The attacker can submit events to the project (i.e. knows the DSN or can access a client that uses it).\n* The Bugsink ingest endpoint is reachable to the attacker.\n* An administrator explicitly views the crafted event in the UI.\n\nUnder those conditions, the attacker can execute JavaScript in the administrator’s browser\nand act with that user’s privileges within Bugsink.", "title": "github - https://github.com/advisories/GHSA-vp6q-7m36-pq3w" }, { "category": "description", "text": "### Summary\n\nAn unauthenticated attacker who can submit events to a Bugsink project can store arbitrary JavaScript in an event.\nThe payload executes only if a user explicitly views the affected Stacktrace in the web UI.\n\n### Details\n\nWhen Pygments returns more lines than it was given (a known upstream quirk that triggers with Ruby heredoc-style input), `_pygmentize_lines()` in `theme/templatetags/issues.py:75-77` falls back to returning the raw input lines. `mark_safe()` at line 111-113 is then applied unconditionally - including to those unsanitized raw lines. Since DSN endpoints are public by Sentry protocol, no account is needed to inject. The payload sits in the database until an admin looks at the event.\n\n```python\n# issues.py:75-77 - fallback path, no escaping\nif len(pygmented) != len(lines):\n return lines # raw HTML returned here\n\n# issues.py:111-113 - unconditional mark_safe\nreturn [mark_safe(line) for line in result]\n```\n\n### Operational Signals\n\nExploitation attempts are likely to generate the diagnostic event:\n\n```\n\"Pygments line count mismatch, falling back to unformatted code\"\n```\n\nInstallations that monitor Bugsink with Bugsink (or otherwise alert on internal errors)\nmay see this message as an issue. While the condition can occur benignly, unexpected\noccurrences, especially from unusual languages (specifically ruby), warrant review.\n\n\n### PoC\n\nSend a Sentry event to `/api//store/` with a valid DSN:\n\n```python\nimport requests\n\npayload = {\n \"exception\": {\"values\": [{\"stacktrace\": {\"frames\": [{\n \"filename\": \"app.rb\",\n \"lineno\": 2,\n \"pre_context\": [\"<<~HEREDOC\", \" foo\", \"HEREDOC\"],\n \"context_line\": \"\",\n \"post_context\": []\n }]}}]}\n}\n\nrequests.post(\n \"http://bugsink-host/api//store/\",\n json=payload,\n headers={\"X-Sentry-Auth\": \"Sentry sentry_key=, sentry_version=7\"}\n)\n```\n\nOpen the event in the bugsink UI as any admin. Cookie exfiltrates immediately.\n\n### Impact\n\nThis is a stored XSS vulnerability.\n\nSuccessful exploitation requires:\n\n* The attacker can submit events to the project (i.e. knows the DSN or can access a client that uses it).\n* The Bugsink ingest endpoint is reachable to the attacker.\n* An administrator explicitly views the crafted event in the UI.\n\nUnder those conditions, the attacker can execute JavaScript in the administrator’s browser\nand act with that user’s privileges within Bugsink.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/PyPI%2FGHSA-vp6q-7m36-pq3w.json?alt=media" }, { "category": "description", "text": "Bugsink is a self-hosted error tracking tool. In versions prior to 2.0.13, an unauthenticated attacker who can submit events to a Bugsink project can store arbitrary JavaScript in an event. The payload executes only if a user explicitly views the affected Stacktrace in the web UI. When Pygments returns more lines than it was given (a known upstream quirk that triggers with Ruby heredoc-style input), `_pygmentize_lines()` in `theme/templatetags/issues.py:75-77` falls back to returning the raw input lines. `mark_safe()` at line 111-113 is then applied unconditionally - including to those unsanitized raw lines. Since DSN endpoints are public by Sentry protocol, no account is needed to inject. The payload sits in the database until an admin looks at the event. Successful exploitation requires that the attacker to be able to submit events to the project (i.e. knows the DSN or can access a client that uses it), the Bugsink ingest endpoint is reachable to the attacker, and an administrator explicitly views the crafted event in the UI. Under those conditions, the attacker can execute JavaScript in the administrator’s browser and act with that user’s privileges within Bugsink. Version 2.0.13 fixes the vulnerability.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-27614.json?alt=media" }, { "category": "description", "text": "Affected versions of the bugsink package are vulnerable to Stored Cross-site Scripting (XSS) due to unsanitized stacktrace lines being marked as safe HTML when syntax highlighting falls back to raw input.", "title": "pyupio - https://pyupio.github.io/safety-db/#bugsink" }, { "category": "other", "text": "0.00058", "title": "EPSS" }, { "category": "other", "text": "3.8", "title": "NCSC Score" }, { "category": "other", "text": "Is related to a product by vendor Unknown, There is exploit data available from source Nvd, Exploit code publicly available", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5700853", "CSAFPID-3016026", "CSAFPID-3016027", "CSAFPID-3016028", "CSAFPID-3016029", "CSAFPID-3016030", "CSAFPID-3016031", "CSAFPID-3016032", "CSAFPID-3016033", "CSAFPID-3016034", "CSAFPID-3016035", "CSAFPID-3016036", "CSAFPID-3016037", "CSAFPID-3016038", "CSAFPID-3016039", "CSAFPID-3016040", "CSAFPID-3016041", "CSAFPID-3749413", "CSAFPID-3749414", "CSAFPID-3749415", "CSAFPID-3749416", "CSAFPID-3749417", "CSAFPID-3749418", "CSAFPID-3749419", "CSAFPID-3749420", "CSAFPID-3749422", "CSAFPID-3749430", "CSAFPID-3749431", "CSAFPID-3749432", "CSAFPID-3749433", "CSAFPID-3749434", "CSAFPID-3749435", "CSAFPID-3749436", "CSAFPID-4778960", "CSAFPID-5181022", "CSAFPID-5181023", "CSAFPID-5181024", "CSAFPID-5181025", "CSAFPID-5181026", "CSAFPID-5181027", "CSAFPID-5181028", "CSAFPID-5181029", "CSAFPID-5181030", "CSAFPID-5184655", "CSAFPID-5184656", "CSAFPID-5184657", "CSAFPID-5184658", "CSAFPID-5708549", "CSAFPID-5708550", "CSAFPID-5708551", "CSAFPID-5708552", "CSAFPID-5708553", "CSAFPID-5708554", "CSAFPID-5708555", "CSAFPID-5708556", "CSAFPID-3749409", "CSAFPID-3749410", "CSAFPID-3749411", "CSAFPID-3749412", "CSAFPID-3749421", "CSAFPID-3749423", "CSAFPID-3749424", "CSAFPID-3749425", "CSAFPID-3749426", "CSAFPID-3749427", "CSAFPID-3749428", "CSAFPID-3749429", "CSAFPID-5753598" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27614" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-27614" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-27614" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/27xxx/CVE-2026-27614.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-27614" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-vp6q-7m36-pq3w" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-vp6q-7m36-pq3w" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/PyPI%2FGHSA-vp6q-7m36-pq3w.json?alt=media" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-27614.json?alt=media" }, { "category": "external", "summary": "Source - pyupio", "url": "https://pyupio.github.io/safety-db/#bugsink" }, { "category": "external", "summary": "Source raw - pyupio", "url": "https://raw.githubusercontent.com/pyupio/safety-db/refs/heads/master/data/insecure_full.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/bugsink/bugsink/commit/e784d6aeb0d5f29b40c2779d2544c2b9ef097ee9" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/bugsink/bugsink/releases/tag/2.0.13" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/bugsink/bugsink/security/advisories/GHSA-vp6q-7m36-pq3w" }, { "category": "external", "summary": "Reference - github; osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27614" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-vp6q-7m36-pq3w" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27614.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N", "baseScore": 9.3, "baseSeverity": "CRITICAL" }, "products": [ "CSAFPID-3016026", "CSAFPID-3016027", "CSAFPID-3016028", "CSAFPID-3016029", "CSAFPID-3016030", "CSAFPID-3016031", "CSAFPID-3016032", "CSAFPID-3016033", "CSAFPID-3016034", "CSAFPID-3016035", "CSAFPID-3016036", "CSAFPID-3016037", "CSAFPID-3016038", "CSAFPID-3016039", "CSAFPID-3016040", "CSAFPID-3016041", "CSAFPID-3749409", "CSAFPID-3749410", "CSAFPID-3749411", "CSAFPID-3749412", "CSAFPID-3749413", "CSAFPID-3749414", "CSAFPID-3749415", "CSAFPID-3749416", "CSAFPID-3749417", "CSAFPID-3749418", "CSAFPID-3749419", "CSAFPID-3749420", "CSAFPID-3749421", "CSAFPID-3749422", "CSAFPID-3749423", "CSAFPID-3749424", "CSAFPID-3749425", "CSAFPID-3749426", "CSAFPID-3749427", "CSAFPID-3749428", "CSAFPID-3749429", "CSAFPID-3749430", "CSAFPID-3749431", "CSAFPID-3749432", "CSAFPID-3749433", "CSAFPID-3749434", "CSAFPID-3749435", "CSAFPID-3749436", "CSAFPID-4778960", "CSAFPID-5181022", "CSAFPID-5181023", "CSAFPID-5181024", "CSAFPID-5181025", "CSAFPID-5181026", "CSAFPID-5181027", "CSAFPID-5181028", "CSAFPID-5181029", "CSAFPID-5181030", "CSAFPID-5184655", "CSAFPID-5184656", "CSAFPID-5184657", "CSAFPID-5184658", "CSAFPID-5700853", "CSAFPID-5708549", "CSAFPID-5708550", "CSAFPID-5708551", "CSAFPID-5708552", "CSAFPID-5708553", "CSAFPID-5708554", "CSAFPID-5708555", "CSAFPID-5708556", "CSAFPID-5753598" ] } ], "title": "CVE-2026-27614" } ] }