CVE-2026-73211 PeerTube: Unauthenticated remote SQL injection in ActorFollowModel.updateScore()
Unauthenticated attackers can inject SQL via actor inboxUrl to read/write database tables and take over administrator accounts in PeerTube.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73211?
CVE-2026-73211 is a critical SQL injection vulnerability in Chocobozzz PeerTube, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PeerTube is an ActivityPub-federated video streaming platform. Prior to 8.1.6, ActorFollowModel.updateScore() interpolates the attacker-controlled ActivityPub actor inboxUrl into an SQL query, allowing an unauthenticated remote server to read and write PeerTube database tables, including oAuthToken.accessToken, and take over administrator accounts. This issue is fixed in version 8.1.6.
Weakness: CWE-89
Which versions are affected by CVE-2026-73211?
How do I fix CVE-2026-73211?
No fix has been published for CVE-2026-73211 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-73211 being exploited?
There is no known exploitation of CVE-2026-73211 in the wild and no public exploit code.
Sources
Also known as GHSA-pqr4-34h8-g39x.