Chocobozzz PeerTube up to 8.1.5 ActorFollowModel ActorFollowModel.updateScore sql injection

Summaryinfo

A vulnerability has been found in Chocobozzz PeerTube up to 8.1.5 and classified as critical. Impacted is the function ActorFollowModel.updateScore of the component ActorFollowModel. The manipulation leads to sql injection. This vulnerability is traded as CVE-2026-73211. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Chocobozzz PeerTube up to 8.1.5. It has been rated as critical. This issue affects the function ActorFollowModel.updateScore of the component ActorFollowModel. The manipulation with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-73211 since 08/11/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1505 for this issue.

Upgrading to version 8.1.6 eliminates this vulnerability.

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Productinfo

Vendor

• Chocobozzz

Name

• PeerTube

Version

• 8.1.0
• 8.1.1
• 8.1.2
• 8.1.3
• 8.1.4
• 8.1.5

Website

• Product: https://github.com/Chocobozzz/PeerTube/

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