{"id":"CVE-2026-33102","state":"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.","publishedAt":"2026-04-23T21:35:48.984Z","updatedAt":"2026-10-15T15:52:08.039Z","severity":{"score":9.3,"label":"Critical","version":"3.1","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","source":"microsoft"},"assigner":"microsoft","products":["Microsoft Microsoft 365 Copilot"],"affected":[{"vendor":"Microsoft","product":"Microsoft 365 Copilot","versions":[{"version":"-","status":"affected"}]}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33102"],"weaknesses":["CWE-601"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33102.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33102","state":"PUBLISHED","datePublished":"2026-04-23T21:35:48.984Z","dateUpdated":"2026-10-15T15:52:08.039Z","assignerShortName":"microsoft","assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateReserved":"2026-03-17T20:15:23.719Z"},"containers":{"cna":{"title":"Microsoft 365 Copilot Elevation of Privilege Vulnerability","descriptions":[{"lang":"en-US","value":"Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network."}],"affected":[{"vendor":"Microsoft","product":"Microsoft 365 Copilot","versions":[{"version":"-","status":"affected"}]}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33102","name":"Microsoft 365 Copilot Elevation of Privilege Vulnerability","tags":["vendor-advisory","patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","baseSeverity":"CRITICAL","baseScore":9.3,"vectorString":"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"shortName":"microsoft","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateUpdated":"2026-10-15T15:52:08.039Z"},"datePublic":"2026-04-23T14:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:*:*:*","versionStartIncluding":"-"}]}]}],"tags":["exclusively-hosted-service"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-24T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-33102"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-25T03:55:51.274Z"}}]}}}