{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73090","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-10T19:37:41.445Z","datePublished":"2026-08-11T17:19:30.272Z","dateUpdated":"2026-08-13T14:06:30.798Z"},"containers":{"cna":{"title":"PeerTube: Cross-origin remote video takeover via Update activity","problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/Chocobozzz/PeerTube/security/advisories/GHSA-g9p4-f7h8-hc86","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Chocobozzz/PeerTube/security/advisories/GHSA-g9p4-f7h8-hc86"},{"name":"https://github.com/Chocobozzz/PeerTube/commit/63d487d2a4a2a0e36af8c0ccb888cd23725bf7f2","tags":["x_refsource_MISC"],"url":"https://github.com/Chocobozzz/PeerTube/commit/63d487d2a4a2a0e36af8c0ccb888cd23725bf7f2"},{"name":"https://github.com/Chocobozzz/PeerTube/releases/tag/v8.2.2","tags":["x_refsource_MISC"],"url":"https://github.com/Chocobozzz/PeerTube/releases/tag/v8.2.2"}],"affected":[{"vendor":"Chocobozzz","product":"PeerTube","versions":[{"version":"< 8.2.2","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-11T17:19:30.272Z"},"descriptions":[{"lang":"en","value":"PeerTube is an ActivityPub-federated video streaming platform. Prior to 8.2.2, processUpdateActivity and processUpdateVideo accept an ActivityPub Update containing a Video object without verifying that byActor.url is authorized for the host in videoObject.id, allowing a malicious federated server to rewrite another server's video metadata, visibility, media file, and HLS URLs. This issue is fixed in version 8.2.2."}],"source":{"advisory":"GHSA-g9p4-f7h8-hc86","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T14:06:14.677948Z","id":"CVE-2026-73090","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-13T14:06:30.798Z"}}]}}