{"id":"CVE-2026-87944","aliases":["DRUPAL-CONTRIB-2026-142","EUVD-2026-107857","GHSA-3jrq-h93g-pqq2"],"status":"published","title":"SAML SSO - Service Provider  - Critical - Improper certificate validation - SA-CONTRIB-2026-142","description":"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":{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00139,"percentile":0.03314,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2026-09-09T17:20:12Z","modified":"2026-10-28T02:30:38Z","fixes":[{"ecosystem":"Packagist:https://packages.drupal.org/8","package":"drupal/miniorange_saml","fixed_in":["3.2.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Packagist:https://packages.drupal.org/8","package":"drupal/miniorange_saml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}]}],"products":[{"vendor":"drupal","product":"saml sso - service provider"}],"references":[{"url":"https://www.drupal.org/sa-contrib-2026-142","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87944","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3jrq-h93g-pqq2"},{"url":"https://git.drupalcode.org/project/miniorange_saml","tags":["web"]},{"url":"https://www.drupal.org/project/miniorange_saml","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87944.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-87944","title":"SAML SSO - Service Provider  - Critical - Improper certificate validation - SA-CONTRIB-2026-142","description":"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.","status":"published","published":"2026-10-22T01:21:58.73Z","modified":"2026-10-22T16:51:45.791Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T13:37:58.613221Z"}],"euvd":[{"id":"EUVD-2026-107857","description":"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.","status":"published","published":"2026-10-22T01:21:58Z","modified":"2026-10-22T16:51:45Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:59:34.732609Z"}],"ghsa":[{"id":"GHSA-3jrq-h93g-pqq2","title":"Improper Certificate Validation vulnerability in Drupal SAML SSO - Service Provider  allows...","description":"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.","status":"published","published":"2026-10-22T03:33:40Z","modified":"2026-10-22T18:39:24Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:14:16.981825Z"}],"nvd":[{"id":"CVE-2026-87944","description":"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.","status":"published","published":"2026-10-22T02:17:03.977Z","modified":"2026-10-22T17:17:00.41Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:13:02.371082Z"}],"osv":[{"id":"CVE-2026-87944","title":"SAML SSO - Service Provider  - Critical - Improper certificate validation - SA-CONTRIB-2026-142","description":"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.","status":"published","published":"2026-10-22T01:21:58.73Z","modified":"2026-10-28T02:30:38.004549413Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:45:19.210277Z"},{"id":"DRUPAL-CONTRIB-2026-142","description":"This module allows you to configure your Drupal site as a SAML 2.0 Service Provider so that users can authenticate through an external identity provider.\n\nThe module does not properly validate TLS certificates when making outbound HTTPS requests.\n\nAn attacker in a position to intercept network traffic could impersonate a trusted remote service and influence communications performed by the module.\n\nThis vulnerability is mitigated by the fact that an attacker must be able to  \nintercept or redirect network traffic originating from the site.","status":"published","published":"2026-09-09T17:20:12Z","modified":"2026-09-09T19:25:57.962352Z","updated_at":"2026-11-02T15:46:13.900249Z"}]}}