{"id":"CVE-2026-41103","aliases":["EUVD-2026-29689","GHSA-w9j2-m5wx-fqq4"],"status":"published","title":"Microsoft SSO Plugin for Jira \u0026 Confluence Elevation of Privilege Vulnerability","description":"Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira \u0026amp; Confluence allows an unauthorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.05378,"percentile":0.92717,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-303"],"published":"2026-05-12T16:59:32Z","modified":"2026-10-26T18:10:00Z","products":[{"vendor":"microsoft","product":"confluence_saml_sso"},{"vendor":"microsoft","product":"jira_saml_sso"},{"vendor":"microsoft","product":"microsoft confluence saml sso plugin"},{"vendor":"microsoft","product":"microsoft jira saml sso plugin"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41103","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41103"},{"url":"https://github.com/advisories/GHSA-w9j2-m5wx-fqq4"}],"sources":{"cve":[{"id":"CVE-2026-41103","title":"Microsoft SSO Plugin for Jira \u0026 Confluence Elevation of Privilege Vulnerability","description":"Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira \u0026amp; Confluence allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-05-12T16:59:32.156Z","modified":"2026-08-10T15:13:39.054Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T13:41:08.498858Z"}],"euvd":[{"id":"EUVD-2026-29689","description":"Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira \u0026amp; Confluence allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-05-12T16:59:32Z","modified":"2026-08-10T15:13:39Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T18:02:01.941928Z"}],"ghsa":[{"id":"GHSA-w9j2-m5wx-fqq4","title":"Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira \u0026amp;...","description":"Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira \u0026amp; Confluence allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-05-12T18:30:46Z","modified":"2026-05-12T18:30:54Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T15:08:05.647564Z"}],"nvd":[{"id":"CVE-2026-41103","description":"Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira \u0026amp; Confluence allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-05-12T18:17:21.887Z","modified":"2026-10-26T18:10:00.173Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T14:12:18.613259Z"}]}}