{"id":"CVE-2026-87944","title":"SAML SSO - Service Provider  - Critical - Improper certificate validation - SA-CONTRIB-2026-142","summary":"Improper Certificate Validation vulnerability in Drupal SAML SSO - Service Provider  allows Adversary in the Middle (AiTM). This issue affects SAML SSO - Service Provider  versions: from 0.0.0 to 3.2.0.","severity":"medium","cvss":4.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","cvssSource":"adp","cwe":["CWE-295"],"vendor":"Drupal","product":"SAML SSO - Service Provider","affected":["saml_sso_-_service_provider >= 0.0.0 < 3.2.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-22T16:51:42.766036Z"},"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T16:51:45.791Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-87944","references":[{"url":"https://www.drupal.org/sa-contrib-2026-142"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T02:23:25.199Z","slug":"CVE-2026-87944","body":"## Overview\n\nImproper Certificate Validation vulnerability in Drupal SAML SSO - Service Provider  allows Adversary in the Middle (AiTM). This issue affects SAML SSO - Service Provider  versions: from 0.0.0 to 3.2.0.\n\n## Affected\n\n- `saml_sso_-_service_provider >= 0.0.0 < 3.2.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":26.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":227803,"id":"CVE-2026-87944","ts":1792706635946,"field":"cvss","old":null,"new":"4.8"},{"seq":227802,"id":"CVE-2026-87944","ts":1792706635946,"field":"severity","old":"none","new":"medium"}]}