{"id":"CVE-2026-26133","aliases":["EUVD-2026-12111","GHSA-rjf5-cxrf-4rvw"],"status":"published","title":"M365 Copilot Information Disclosure Vulnerability","description":"AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00494,"percentile":0.42865,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-77"],"published":"2026-03-13T21:10:13Z","modified":"2026-06-19T18:18:11Z","products":[{"vendor":"microsoft","product":"365_copilot"},{"vendor":"microsoft","product":"edge"},{"vendor":"microsoft","product":"excel"},{"vendor":"microsoft","product":"loop"},{"vendor":"microsoft","product":"microsoft 365 copilot for android"},{"vendor":"microsoft","product":"microsoft 365 copilot for ios"},{"vendor":"microsoft","product":"microsoft edge for android"},{"vendor":"microsoft","product":"microsoft edge for ios"},{"vendor":"microsoft","product":"microsoft excel for android"},{"vendor":"microsoft","product":"microsoft excel for ios"},{"vendor":"microsoft","product":"microsoft loop for ios"},{"vendor":"microsoft","product":"microsoft onenote"},{"vendor":"microsoft","product":"microsoft onenote for android"},{"vendor":"microsoft","product":"microsoft outlook for android"},{"vendor":"microsoft","product":"microsoft outlook for ios"},{"vendor":"microsoft","product":"microsoft outlook for mac"},{"vendor":"microsoft","product":"microsoft powerbi for android"},{"vendor":"microsoft","product":"microsoft powerbi for ios"},{"vendor":"microsoft","product":"microsoft powerpoint for android"},{"vendor":"microsoft","product":"microsoft powerpoint for ios"},{"vendor":"microsoft","product":"microsoft teams for android"},{"vendor":"microsoft","product":"microsoft teams for ios"},{"vendor":"microsoft","product":"microsoft word for android"},{"vendor":"microsoft","product":"microsoft word for ios"},{"vendor":"microsoft","product":"onenote"},{"vendor":"microsoft","product":"outlook"},{"vendor":"microsoft","product":"power_bi"},{"vendor":"microsoft","product":"powerpoint"},{"vendor":"microsoft","product":"teams"},{"vendor":"microsoft","product":"word"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26133","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26133"},{"url":"https://github.com/advisories/GHSA-rjf5-cxrf-4rvw"}],"sources":{"cve":[{"id":"CVE-2026-26133","title":"M365 Copilot Information Disclosure Vulnerability","description":"AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-03-13T21:10:13.535Z","modified":"2026-06-19T18:18:11.619Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T13:38:32.13011Z"}],"euvd":[{"id":"EUVD-2026-12111","description":"AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-03-13T21:10:13Z","modified":"2026-06-19T18:18:11Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:20:35.26548Z"}],"ghsa":[{"id":"GHSA-rjf5-cxrf-4rvw","title":"AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over...","description":"AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-03-16T15:30:42Z","modified":"2026-04-07T15:30:28Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:07:11.075264Z"}],"nvd":[{"id":"CVE-2026-26133","description":"AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-03-16T14:18:26.337Z","modified":"2026-06-17T10:25:47.033Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:12:09.358914Z"}]}}