{ "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-2026-2742", "tracking": { "current_release_date": "2026-03-23T10:19:59.755811Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-2742", "initial_release_date": "2026-01-13T00:42:16.780561Z", "revision_history": [ { "date": "2026-01-13T00:42:16.780561Z", "number": "1", "summary": "NCSC Score created." }, { "date": "2026-03-10T12:38:47.153179Z", "number": "2", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (7).| Products connected (1).| References created (4).| CWES updated (1)." }, { "date": "2026-03-10T12:38:51.198145Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-03-10T14:39:10.664958Z", "number": "4", "summary": "Unknown change." }, { "date": "2026-03-10T14:39:13.870168Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-03-10T15:35:24.292485Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-10T17:39:48.224179Z", "number": "7", "summary": "Products created (2).| Products connected (1).| Products removed (3).| References created (3)." }, { "date": "2026-03-10T18:36:41.274664Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (7).| CWES updated (1)." }, { "date": "2026-03-10T18:36:45.246070Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-11T10:15:35.597487Z", "number": "10", "summary": "Source connected.| CVE status created. (valid)| Products connected (4).| References created (5)." }, { "date": "2026-03-11T10:15:37.397146Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-03-11T14:59:08.037401Z", "number": "12", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-11T14:59:12.289560Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-03-11T20:00:46.040936Z", "number": "14", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (9).| CWES updated (1)." }, { "date": "2026-03-11T20:00:48.308560Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-03-13T00:28:01.108400Z", "number": "16", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (2).| Product Identifiers created (2).| Product Remediations created (4).| Products created (2).| References created (6).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-03-13T00:28:06.357106Z", "number": "17", "summary": "NCSC Score updated." }, { "date": "2026-03-16T11:39:07.684049Z", "number": "18", "summary": "Products created (2).| Products connected (2).| Products removed (4)." }, { "date": "2026-03-19T15:29:51.413129Z", "number": "19", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (9).| CWES updated (1)." }, { "date": "2026-03-19T15:29:54.052234Z", "number": "20", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:41:12.506438Z", "number": "21", "summary": "Source connected.| CVE status created. (valid)| EPSS created." } ], "status": "interim", "version": "21" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:maven/1.0.0|<=2.13.0", "product": { "name": "vers:maven/1.0.0|<=2.13.0", "product_id": "CSAFPID-5829362" } }, { "category": "product_version_range", "name": "vers:maven/24.0.0|<=24.9.7", "product": { "name": "vers:maven/24.0.0|<=24.9.7", "product_id": "CSAFPID-5774933" } }, { "category": "product_version_range", "name": "vers:maven/25.0.0|<25.0.1", "product": { "name": "vers:maven/25.0.0|<25.0.1", "product_id": "CSAFPID-5775309" } }, { "category": "product_version_range", "name": "vers:maven/3.0.0|<=23.6.7", "product": { "name": "vers:maven/3.0.0|<=23.6.7", "product_id": "CSAFPID-5829360" } } ], "category": "product_name", "name": "Flow" }, { "branches": [ { "category": "product_version_range", "name": "vers:maven/10.0.0|<=14.14.0", "product": { "name": "vers:maven/10.0.0|<=14.14.0", "product_id": "CSAFPID-5829361" } }, { "category": "product_version_range", "name": "vers:maven/15.0.0|<=23.6.6", "product": { "name": "vers:maven/15.0.0|<=23.6.6", "product_id": "CSAFPID-5829359" } }, { "category": "product_version_range", "name": "vers:maven/24.0.0|<=24.9.7", "product": { "name": "vers:maven/24.0.0|<=24.9.7", "product_id": "CSAFPID-5774930" } }, { "category": "product_version_range", "name": "vers:maven/25.0.0|<=25.0.1", "product": { "name": "vers:maven/25.0.0|<=25.0.1", "product_id": "CSAFPID-5774931" } } ], "category": "product_name", "name": "Vaadin" } ], "category": "vendor", "name": "Vaadin" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/8", "product": { "name": "vers:rpm/8", "product_id": "CSAFPID-1439302", "product_identification_helper": { "cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8" } } } ], "category": "product_name", "name": "Red Hat JBoss Enterprise Application Platform 8" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1439304", "product_identification_helper": { "cpe": "cpe:/a:redhat:jbosseapxp" } } } ], "category": "product_name", "name": "Red Hat JBoss Enterprise Application Platform Expansion Pack" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5811238" } } ], "category": "product_name", "name": "flow-server" } ], "category": "product_family", "name": "Red Hat JBoss Enterprise Application Platform 8" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5811242" } } ], "category": "product_name", "name": "flow-server" } ], "category": "product_family", "name": "Red Hat JBoss Enterprise Application Platform Expansion Pack" } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<14.14.1", "product": { "name": "vers:unknown/<14.14.1", "product_id": "CSAFPID-5794081" } }, { "category": "product_version_range", "name": "vers:unknown/<23.6.7", "product": { "name": "vers:unknown/<23.6.7", "product_id": "CSAFPID-5794076" } }, { "category": "product_version_range", "name": "vers:unknown/<24.9.8", "product": { "name": "vers:unknown/<24.9.8", "product_id": "CSAFPID-5794077" } }, { "category": "product_version_range", "name": "vers:unknown/<25.0.2", "product": { "name": "vers:unknown/<25.0.2", "product_id": "CSAFPID-5794082" } } ], "category": "product_name", "name": "Vaadin" } ], "category": "vendor", "name": "Open Source" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-2742", "cwe": { "id": "CWE-551", "name": "Incorrect Behavior Order: Authorization Before Parsing and Canonicalization" }, "notes": [ { "category": "description", "text": "An authentication bypass vulnerability exists in Vaadin 14.0.0 through 14.14.0, 23.0.0 through 23.6.6, 24.0.0 through 24.9.7 and 25.0.0 through 25.0.1, applications using Spring Security due to inconsistent path pattern matching of reserved framework paths.\n\nAccessing the /VAADIN endpoint without a trailing slash bypasses security filters, and allowing unauthenticated users to trigger framework initialization and create sessions without proper authorization.\n\nUsers of affected versions using Spring Security should upgrade as follows: 14.0.0-14.14.0 upgrade to 14.14.1, 23.0.0-23.6.6 to 23.6.7, 24.0.0 - 24.9.7 to 24.9.8, and 25.0.0-25.0.1 upgrade to 25.0.2 or newer.\n\nPlease note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 14, 23, 24, 25 version.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-2742" }, { "category": "description", "text": "An authentication bypass vulnerability exists in Vaadin 14.0.0 through 14.14.0, 23.0.0 through 23.6.6, 24.0.0 through 24.9.7 and 25.0.0 through 25.0.1, applications using Spring Security due to inconsistent path pattern matching of reserved framework paths.\n\nAccessing the /VAADIN endpoint without a trailing slash bypasses security filters, and allowing unauthenticated users to trigger framework initialization and create sessions without proper authorization.\n\nUsers of affected versions using Spring Security should upgrade as follows: 14.0.0-14.14.0 upgrade to 14.14.1, 23.0.0-23.6.6 to 23.6.7, 24.0.0 - 24.9.7 to 24.9.8, and 25.0.0-25.0.1 upgrade to 25.0.2 or newer.\n\nPlease note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 14, 23, 24, 25 version.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-2742" }, { "category": "description", "text": "An authentication bypass vulnerability exists in Vaadin 14.0.0 through 14.14.0, 23.0.0 through 23.6.6, 24.0.0 through 24.9.7 and 25.0.0 through 25.0.1, applications using Spring Security due to inconsistent path pattern matching of reserved framework paths.\n\nAccessing the /VAADIN endpoint without a trailing slash bypasses security filters, and allowing unauthenticated users to trigger framework initialization and create sessions without proper authorization.\n\nUsers of affected versions using Spring Security should upgrade as follows: 14.0.0-14.14.0 upgrade to 14.14.1, 23.0.0-23.6.6 to 23.6.7, 24.0.0 - 24.9.7 to 24.9.8, and 25.0.0-25.0.1 upgrade to 25.0.2 or newer.\n\nPlease note that Vaadin versions 10-13 and 15-22 are no longer supported and users should update either to the latest 14, 23, 24, 25 version.", "title": "github - https://github.com/advisories/GHSA-rjgh-wgc7-m37j" }, { "category": "description", "text": "An authentication bypass vulnerability exists in Vaadin 14.0.0 through 14.14.0, 23.0.0 through 23.6.6, 24.0.0 through 24.9.7 and 25.0.0 through 25.0.1, applications using Spring Security due to inconsistent path pattern matching of reserved framework paths.\nAccessing the /VAADIN endpoint without a trailing slash bypasses security filters, and allowing unauthenticated users to trigger framework initialization and create sessions without proper authorization.\nUsers of affected versions using Spring Security should upgrade as follows: 14.0.0-14.14.0 upgrade to 14.14.1, 23.0.0-23.6.6 to 23.6.7, 24.0.0 - 24.9.7 to 24.9.8, and 25.0.0-25.0.1 upgrade to 25.0.2 or newer.\nPlease note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 14, 23, 24, 25 version.\nA flaw was found in com.vaadin/flow-server. This authentication bypass vulnerability allows an unauthenticated attacker to bypass security filters by accessing the /VAADIN endpoint without a trailing slash. This inconsistent path pattern matching enables the attacker to trigger framework initialization and create sessions without proper authorization, potentially leading to unauthorized access and information disclosure.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-2742" }, { "category": "description", "text": "An authentication bypass vulnerability exists in Vaadin 14.0.0 through 14.14.0, 23.0.0 through 23.6.6, 24.0.0 through 24.9.7 and 25.0.0 through 25.0.1, applications using Spring Security due to inconsistent path pattern matching of reserved framework paths.\n\nAccessing the /VAADIN endpoint without a trailing slash bypasses security filters, and allowing unauthenticated users to trigger framework initialization and create sessions without proper authorization.\n\nUsers of affected versions using Spring Security should upgrade as follows: 14.0.0-14.14.0 upgrade to 14.14.1, 23.0.0-23.6.6 to 23.6.7, 24.0.0 - 24.9.7 to 24.9.8, and 25.0.0-25.0.1 upgrade to 25.0.2 or newer.\n\nPlease note that Vaadin versions 10-13 and 15-22 are no longer supported and users should update either to the latest 14, 23, 24, 25 version.", "title": "github - https://api.github.com/advisories/GHSA-rjgh-wgc7-m37j" }, { "category": "other", "text": "0.00281", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/S:N/AU:Y/R:A/V:D/RE:L/U:Amber", "title": "CVSSV4" }, { "category": "other", "text": "5.3", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.3", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Certbundde", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The value of the most recent CVSS (V3) score", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-5774930", "CSAFPID-5774931", "CSAFPID-5774933", "CSAFPID-5775309", "CSAFPID-5794076", "CSAFPID-5794077", "CSAFPID-5794081", "CSAFPID-5794082", "CSAFPID-1439302", "CSAFPID-1439304", "CSAFPID-5811238", "CSAFPID-5811242", "CSAFPID-5829359", "CSAFPID-5829360", "CSAFPID-5829361", "CSAFPID-5829362" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-2742" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/2xxx/CVE-2026-2742.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2742" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-2742" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0675.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-2742" }, { "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-rjgh-wgc7-m37j" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-rjgh-wgc7-m37j" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-2742" }, { "category": "external", "summary": "Source raw - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-2742.json" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-rjgh-wgc7-m37j" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - certbundde; cveprojectv5; github; nvd; redhat", "url": "https://vaadin.com/security/cve-2026-2742" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/vaadin/flow/pull/22998" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/vaadin/flow/pull/23037" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/vaadin/flow/pull/23057" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/vaadin/flow/pull/23052" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/vaadin/flow/pull/23034" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/vaadin/flow/pull/23033" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0675.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0675" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://vaadin.com/security/cve-2026-2741" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2446005" }, { "category": "external", "summary": "Reference - github; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2742" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-rjgh-wgc7-m37j" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-2742" } ], "remediations": [ { "category": "mitigation", "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.", "product_ids": [ "CSAFPID-1439302", "CSAFPID-1439304", "CSAFPID-5811238", "CSAFPID-5811242" ] } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 6.3, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1439302", "CSAFPID-1439304", "CSAFPID-5774930", "CSAFPID-5774931", "CSAFPID-5774933", "CSAFPID-5775309", "CSAFPID-5794076", "CSAFPID-5794077", "CSAFPID-5794081", "CSAFPID-5794082", "CSAFPID-5811238", "CSAFPID-5811242", "CSAFPID-5829359", "CSAFPID-5829360", "CSAFPID-5829361", "CSAFPID-5829362" ] } ], "title": "CVE-2026-2742" } ] }