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.
History

Thu, 13 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 12 Aug 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Chocobozzz
Chocobozzz peertube
Vendors & Products Chocobozzz
Chocobozzz peertube

Tue, 11 Aug 2026 17:45:00 +0000

Type Values Removed Values Added
Description 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.
Title PeerTube: Cross-origin remote video takeover via Update activity
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-08-11T17:19:30.272Z

Updated: 2026-08-13T14:06:30.798Z

Reserved: 2026-08-10T19:37:41.445Z

Link: CVE-2026-73090

cve-icon Vulnrichment

Updated: 2026-08-13T14:06:20.963Z

cve-icon NVD

Status : Received

Published: 2026-08-11T18:18:26.210

Modified: 2026-08-13T15:20:07.180

Link: CVE-2026-73090

cve-icon Redhat

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