{"id":"CVE-2026-42901","aliases":["EUVD-2026-31522","GHSA-2jpj-7p7q-hfqj"],"status":"published","title":"Microsoft Entra ID Elevation of Privilege Vulnerability","description":"Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00301,"percentile":0.22996,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-346"],"published":"2026-05-22T22:04:40Z","modified":"2026-08-10T15:13:56Z","products":[{"vendor":"microsoft","product":"entra_id"},{"vendor":"microsoft","product":"microsoft entra"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42901","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42901"},{"url":"https://github.com/advisories/GHSA-2jpj-7p7q-hfqj"}],"sources":{"cve":[{"id":"CVE-2026-42901","title":"Microsoft Entra ID Elevation of Privilege Vulnerability","description":"Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-05-22T22:04:40.921Z","modified":"2026-08-10T15:13:56.569Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T13:40:23.731501Z"}],"euvd":[{"id":"EUVD-2026-31522","description":"Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-05-22T22:04:40Z","modified":"2026-08-10T15:13:56Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T18:02:01.941928Z"}],"ghsa":[{"id":"GHSA-2jpj-7p7q-hfqj","title":"Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate...","description":"Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-05-26T13:30:23Z","modified":"2026-05-26T13:30:30Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T15:08:16.245994Z"}],"nvd":[{"id":"CVE-2026-42901","description":"Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-05-22T23:16:55.67Z","modified":"2026-07-23T11:10:00.12Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:12:20.131508Z"}]}}