CVE-2026-73090: Chocobozzz Peertube

Critical severity, CVSS 9.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Chocobozzz Peertube: before 8.2.2 (fixed in 8.2.2)

Published 2026-08-11. Last modified 2026-09-09.