Critical 9.3Published Aug 11, 2026

CVE-2026-73090PeerTube: Cross-origin remote video takeover via Update activity

Updated under an hour ago (2026-10-19 11:10 UTC)

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It affects Chocobozzz PeerTube. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Chocobozzz PeerTube

Exploited in the last 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.

CVSS: 9.3 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Chocobozzz PeerTube chocobozzz:peertube (from the name)	before 8.2.2	CNA record

References

https://github.com/Chocobozzz/PeerTube/security/advisories/GHSA-g9p4-f7h8-hc86x-refsource-confirm
https://github.com/Chocobozzz/PeerTube/commit/63d487d2a4a2a0e36af8c0ccb888cd23725bf7f2x-refsource-misc
https://github.com/Chocobozzz/PeerTube/releases/tag/v8.2.2x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.