{ "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-2026-100865", "tracking": { "current_release_date": "2026-10-03T21:27:26.160547Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-100865", "initial_release_date": "2026-09-27T02:26:56.801696Z", "revision_history": [ { "date": "2026-09-27T02:26:56.801696Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-09-27T02:26:59.750765Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-09-27T07:35:42.733475Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-09-27T12:15:23.154674Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (51).| References created (4).| CWES updated (1)." }, { "date": "2026-09-27T12:15:36.889308Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-09-27T15:15:05.375069Z", "number": "6", "summary": "EPSS created.| Unknown change." }, { "date": "2026-09-27T17:25:45.902393Z", "number": "7", "summary": "Description removed for source.| Description created for source.| References created (1).| References removed (1)." }, { "date": "2026-09-28T06:49:16.010501Z", "number": "8", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (51).| References created (5).| CWES updated (1)." }, { "date": "2026-09-28T06:49:31.090717Z", "number": "9", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (51).| References created (5).| CWES updated (1)." }, { "date": "2026-09-28T06:49:42.435287Z", "number": "10", "summary": "Description removed for source.| Description created for source.| References created (1)." }, { "date": "2026-09-28T12:41:37.497330Z", "number": "11", "summary": "CVSS created.| CWES created (1).| Products created (2).| References created (2).| Description created for source.| Unknown change." }, { "date": "2026-09-28T12:41:39.190575Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-09-28T14:38:39.133449Z", "number": "13", "summary": "Unknown change." }, { "date": "2026-09-29T06:12:08.429962Z", "number": "14", "summary": "References removed (1)." }, { "date": "2026-09-29T16:13:14.741648Z", "number": "15", "summary": "EPSS created.| Unknown change." }, { "date": "2026-09-29T16:13:21.161988Z", "number": "16", "summary": "NCSC Score updated." }, { "date": "2026-10-03T21:27:24.684577Z", "number": "17", "summary": "NCSC Score updated." } ], "status": "interim", "version": "17" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:semver/0.0.53", "product": { "name": "vers:semver/0.0.53", "product_id": "CSAFPID-9478810" } }, { "category": "product_version_range", "name": "vers:semver/<0.0.53", "product": { "name": "vers:semver/<0.0.53", "product_id": "CSAFPID-9478811" } }, { "category": "product_version_range", "name": "vers:unknown/v.0.0.49", "product": { "name": "vers:unknown/v.0.0.49", "product_id": "CSAFPID-9106612" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.1", "product": { "name": "vers:unknown/v0.0.1", "product_id": "CSAFPID-8568167" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.10", "product": { "name": "vers:unknown/v0.0.10", "product_id": "CSAFPID-8568158" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.11", "product": { "name": "vers:unknown/v0.0.11", "product_id": "CSAFPID-8568157" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.12", "product": { "name": "vers:unknown/v0.0.12", "product_id": "CSAFPID-8568156" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.13", "product": { "name": "vers:unknown/v0.0.13", "product_id": "CSAFPID-8568155" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.14", "product": { "name": "vers:unknown/v0.0.14", "product_id": "CSAFPID-8568154" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.15", "product": { "name": "vers:unknown/v0.0.15", "product_id": "CSAFPID-8568153" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.16", "product": { "name": "vers:unknown/v0.0.16", "product_id": "CSAFPID-8568152" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.17", "product": { "name": "vers:unknown/v0.0.17", "product_id": "CSAFPID-8568151" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.18", "product": { "name": "vers:unknown/v0.0.18", "product_id": "CSAFPID-8568150" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.19", "product": { "name": "vers:unknown/v0.0.19", "product_id": "CSAFPID-8568149" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.2", "product": { "name": "vers:unknown/v0.0.2", "product_id": "CSAFPID-8568166" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.20", "product": { "name": "vers:unknown/v0.0.20", "product_id": "CSAFPID-8568148" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.21", "product": { "name": "vers:unknown/v0.0.21", "product_id": "CSAFPID-9106639" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.22", "product": { "name": "vers:unknown/v0.0.22", "product_id": "CSAFPID-9106638" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.23", "product": { "name": "vers:unknown/v0.0.23", "product_id": "CSAFPID-9106637" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.24", "product": { "name": "vers:unknown/v0.0.24", "product_id": "CSAFPID-9106636" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.25", "product": { "name": "vers:unknown/v0.0.25", "product_id": "CSAFPID-9106635" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.26", "product": { "name": "vers:unknown/v0.0.26", "product_id": "CSAFPID-9106634" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.27", "product": { "name": "vers:unknown/v0.0.27", "product_id": "CSAFPID-9106633" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.29", "product": { "name": "vers:unknown/v0.0.29", "product_id": "CSAFPID-9106632" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.3", "product": { "name": "vers:unknown/v0.0.3", "product_id": "CSAFPID-8568165" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.30", "product": { "name": "vers:unknown/v0.0.30", "product_id": "CSAFPID-9106631" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.31", "product": { "name": "vers:unknown/v0.0.31", "product_id": "CSAFPID-9106630" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.32", "product": { "name": "vers:unknown/v0.0.32", "product_id": "CSAFPID-9106629" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.33", "product": { "name": "vers:unknown/v0.0.33", "product_id": "CSAFPID-9106628" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.34", "product": { "name": "vers:unknown/v0.0.34", "product_id": "CSAFPID-9106627" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.35", "product": { "name": "vers:unknown/v0.0.35", "product_id": "CSAFPID-9106626" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.36", "product": { "name": "vers:unknown/v0.0.36", "product_id": "CSAFPID-9106625" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.37", "product": { "name": "vers:unknown/v0.0.37", "product_id": "CSAFPID-9106624" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.38", "product": { "name": "vers:unknown/v0.0.38", "product_id": "CSAFPID-9106623" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.39", "product": { "name": "vers:unknown/v0.0.39", "product_id": "CSAFPID-9106622" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.4", "product": { "name": "vers:unknown/v0.0.4", "product_id": "CSAFPID-8568164" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.40", "product": { "name": "vers:unknown/v0.0.40", "product_id": "CSAFPID-9106621" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.41", "product": { "name": "vers:unknown/v0.0.41", "product_id": "CSAFPID-9106620" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.42", "product": { "name": "vers:unknown/v0.0.42", "product_id": "CSAFPID-9106619" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.43", "product": { "name": "vers:unknown/v0.0.43", "product_id": "CSAFPID-9106618" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.44", "product": { "name": "vers:unknown/v0.0.44", "product_id": "CSAFPID-9106617" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.45", "product": { "name": "vers:unknown/v0.0.45", "product_id": "CSAFPID-9106616" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.46", "product": { "name": "vers:unknown/v0.0.46", "product_id": "CSAFPID-9106615" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.47", "product": { "name": "vers:unknown/v0.0.47", "product_id": "CSAFPID-9106614" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.48", "product": { "name": "vers:unknown/v0.0.48", "product_id": "CSAFPID-9106613" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.5", "product": { "name": "vers:unknown/v0.0.5", "product_id": "CSAFPID-8568163" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.50", "product": { "name": "vers:unknown/v0.0.50", "product_id": "CSAFPID-9106611" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.51", "product": { "name": "vers:unknown/v0.0.51", "product_id": "CSAFPID-9106610" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.52", "product": { "name": "vers:unknown/v0.0.52", "product_id": "CSAFPID-9106609" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.6", "product": { "name": "vers:unknown/v0.0.6", "product_id": "CSAFPID-8568162" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.7", "product": { "name": "vers:unknown/v0.0.7", "product_id": "CSAFPID-8568161" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.8", "product": { "name": "vers:unknown/v0.0.8", "product_id": "CSAFPID-8568160" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.9", "product": { "name": "vers:unknown/v0.0.9", "product_id": "CSAFPID-8568159" } } ], "category": "product_name", "name": "heym" } ], "category": "vendor", "name": "heymrun" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-100865", "cwe": { "id": "CWE-94", "name": "Improper Control of Generation of Code ('Code Injection')" }, "notes": [ { "category": "description", "text": "Heym before 0.0.53 evaluates workflow condition expressions using Python's eval() with insufficient sandboxing in the workflow executor service. Authenticated users can edit workflow condition nodes or import malicious templates to execute arbitrary Python and OS commands as the backend process user.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-100865" }, { "category": "description", "text": "Heym before 0.0.53 evaluates workflow condition expressions using Python's eval() with insufficient sandboxing in the workflow executor service. Authenticated users can edit workflow condition nodes or import malicious templates to execute arbitrary Python and OS commands as the backend process user.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-100865" }, { "category": "description", "text": "Heym before 0.0.53 fails to verify the X-Telegram-Bot-Api-Secret-Token header on Telegram webhook endpoints when credential_id is absent or secret_token is empty. Remote unauthenticated attackers can post forged Telegram updates to trigger workflows with the owner's configured credentials and execute actions on attacker-supplied input.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-101050.json?alt=media" }, { "category": "description", "text": "Heym before 0.0.53 fails to verify Slack request signatures when trigger nodes lack credential IDs or have empty signing secrets. Remote unauthenticated attackers can send forged Slack events to known webhook URLs to trigger workflows with the owner's credentials.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-101049.json?alt=media" }, { "category": "description", "text": "Heym before 0.0.53 evaluates workflow condition expressions using Python's eval() with insufficient sandboxing in the workflow executor service. Authenticated users can edit workflow condition nodes or import malicious templates to execute arbitrary Python and OS commands as the backend process user.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-100865.json?alt=media" }, { "category": "other", "text": "0.00323", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "title": "CVSSV4" }, { "category": "other", "text": "8.7", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.3", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Cveprojectv5", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "There is cwe data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-8568148", "CSAFPID-8568149", "CSAFPID-8568150", "CSAFPID-8568151", "CSAFPID-8568152", "CSAFPID-8568153", "CSAFPID-8568154", "CSAFPID-8568155", "CSAFPID-8568156", "CSAFPID-8568157", "CSAFPID-8568158", "CSAFPID-8568159", "CSAFPID-8568160", "CSAFPID-8568161", "CSAFPID-8568162", "CSAFPID-8568163", "CSAFPID-8568164", "CSAFPID-8568165", "CSAFPID-8568166", "CSAFPID-8568167", "CSAFPID-9106609", "CSAFPID-9106610", "CSAFPID-9106611", "CSAFPID-9106612", "CSAFPID-9106613", "CSAFPID-9106614", "CSAFPID-9106615", "CSAFPID-9106616", "CSAFPID-9106617", "CSAFPID-9106618", "CSAFPID-9106619", "CSAFPID-9106620", "CSAFPID-9106621", "CSAFPID-9106622", "CSAFPID-9106623", "CSAFPID-9106624", "CSAFPID-9106625", "CSAFPID-9106626", "CSAFPID-9106627", "CSAFPID-9106628", "CSAFPID-9106629", "CSAFPID-9106630", "CSAFPID-9106631", "CSAFPID-9106632", "CSAFPID-9106633", "CSAFPID-9106634", "CSAFPID-9106635", "CSAFPID-9106636", "CSAFPID-9106637", "CSAFPID-9106638", "CSAFPID-9106639", "CSAFPID-9478811" ], "known_not_affected": [ "CSAFPID-9478810" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100865" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-100865" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-100865.json?alt=media" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-101050.json?alt=media" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-101049.json?alt=media" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-100865" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100865.json" }, { "category": "external", "summary": "Reference - osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100865" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://github.com/heymrun/heym/commit/341d1012367cd74f85c617e1c98dd49e3fcb5e83" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101050.json" }, { "category": "external", "summary": "Reference - osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101050" }, { "category": "external", "summary": "Reference - osv", "url": "https://www.vulncheck.com/advisories/heym-before-0.0.53-authentication-bypass-via-telegram-webhook" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101049.json" }, { "category": "external", "summary": "Reference - osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101049" }, { "category": "external", "summary": "Reference - osv", "url": "https://www.vulncheck.com/advisories/heym-before-0.0.53-slack-webhook-signature-verification-bypass" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-8568148", "CSAFPID-8568149", "CSAFPID-8568150", "CSAFPID-8568151", "CSAFPID-8568152", "CSAFPID-8568153", "CSAFPID-8568154", "CSAFPID-8568155", "CSAFPID-8568156", "CSAFPID-8568157", "CSAFPID-8568158", "CSAFPID-8568159", "CSAFPID-8568160", "CSAFPID-8568161", "CSAFPID-8568162", "CSAFPID-8568163", "CSAFPID-8568164", "CSAFPID-8568165", "CSAFPID-8568166", "CSAFPID-8568167", "CSAFPID-9106609", "CSAFPID-9106610", "CSAFPID-9106611", "CSAFPID-9106612", "CSAFPID-9106613", "CSAFPID-9106614", "CSAFPID-9106615", "CSAFPID-9106616", "CSAFPID-9106617", "CSAFPID-9106618", "CSAFPID-9106619", "CSAFPID-9106620", "CSAFPID-9106621", "CSAFPID-9106622", "CSAFPID-9106623", "CSAFPID-9106624", "CSAFPID-9106625", "CSAFPID-9106626", "CSAFPID-9106627", "CSAFPID-9106628", "CSAFPID-9106629", "CSAFPID-9106630", "CSAFPID-9106631", "CSAFPID-9106632", "CSAFPID-9106633", "CSAFPID-9106634", "CSAFPID-9106635", "CSAFPID-9106636", "CSAFPID-9106637", "CSAFPID-9106638", "CSAFPID-9106639", "CSAFPID-9478811" ] } ], "title": "CVE-2026-100865" } ] }