{"id":"CVE-2026-41106","aliases":["EUVD-2026-41445","GHSA-6xf4-794h-3f7w"],"status":"published","title":"Microsoft 365 Copilot Elevation of Privilege Vulnerability","description":"Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00716,"percentile":0.54226,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-601"],"published":"2026-07-02T22:18:57Z","modified":"2026-11-10T22:34:55Z","products":[{"vendor":"microsoft","product":"365_copilot"},{"vendor":"microsoft","product":"microsoft 365 copilot"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41106","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41106"},{"url":"https://github.com/advisories/GHSA-6xf4-794h-3f7w"}],"sources":{"cve":[{"id":"CVE-2026-41106","title":"Microsoft 365 Copilot Elevation of Privilege Vulnerability","description":"Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-07-02T22:18:57.629Z","modified":"2026-11-10T22:34:55.004Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-601"],"updated_at":"2026-11-10T23:49:28.582338Z"}],"euvd":[{"id":"EUVD-2026-41445","description":"Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-07-02T22:18:57Z","modified":"2026-11-10T22:34:55Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-10T23:24:16.163953Z"}],"ghsa":[{"id":"GHSA-6xf4-794h-3f7w","title":"Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized...","description":"Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-07-03T00:31:53Z","modified":"2026-07-03T00:31:53Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:09:13.018027Z"}],"nvd":[{"id":"CVE-2026-41106","description":"Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-07-02T23:16:50.867Z","modified":"2026-10-25T21:10:00.77Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"primary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:12:27.541515Z"}]}}