{"id":"CVE-2026-80465","title":"A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.27)","summary":"A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.27). Affected versio…","severity":"high","cvss":8.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","cwe":["CWE-347"],"published":"2026-09-03","updated":"2026-09-08","sourceUpdated":"2026-09-08T18:41:55.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80465","references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-887643.html","label":"productcert@siemens.com"}],"tags":["nvd"],"epss":0.00176,"epssPercentile":0.07327,"ingestedAt":"2026-09-08T19:08:49.591Z","slug":"CVE-2026-80465","body":"## Overview\n\nA vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.27). Affected versions of the module do not properly validate the SAML response signature. This could allow unauthenticated remote attackers to hijack an account (session) in specific SSO configurations.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}