CVE-2026-73090

Zayıflık

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.

Kaynaklar

• https://github.com/Chocobozzz/PeerTube/commit/63d487d2a4a2a0e36af8c0ccb888cd23725bf7f2
• https://github.com/Chocobozzz/PeerTube/releases/tag/v8.2.2
• https://github.com/Chocobozzz/PeerTube/security/advisories/GHSA-g9p4-f7h8-hc86