CVE-2026-73211
Received Received - Intake

Remote Code Execution in PeerTube Video Platform

Publication date: 2026-08-11

Last updated on: 2026-08-11

Assigner: GitHub, Inc.

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.

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Meta Information

Published
2026-08-11
Last Modified
2026-08-11
Generated
2026-09-01
AI Q&A
2026-08-12
EPSS Evaluated
2026-08-30
NVD
CVE-2026-73211
EUVD
EUVD-2026-56786

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
peertube peertube to 8.1.6 (exc)
chocobozzz peertube 8.1.6
chocobozzz peertube to 8.1.6 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Attack-Flow Graph

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Executive Summary

CVE-2026-73211 is a critical unauthenticated remote SQL injection flaw in PeerTube's ActorFollowModel.updateScore() function affecting versions before 8.1.6. The vulnerability allows attackers to inject malicious SQL queries via the ActivityPub actor's inboxUrl parameter, enabling arbitrary read and write access to PeerTube's database tables.

Detection Guidance

Check PeerTube version with: docker exec -it peertube_app_1 cat /app/package.json | grep version. Look for suspicious database queries or unauthorized plugin installations in logs. Monitor for unexpected network connections from PeerTube to external servers.

Impact Analysis

This vulnerability can lead to severe consequences including account takeover by stealing plain-text OAuth tokens, administrator account compromise by modifying bcrypt hashes, remote code execution within the PeerTube Node.js process, and even full database-host RCE in Docker deployments. Attackers can also install malicious plugins and manipulate database contents.

Compliance Impact

This vulnerability likely violates compliance requirements for GDPR and HIPAA due to unauthorized access to sensitive data (OAuth tokens, user accounts), potential data breaches, and lack of proper access controls. Organizations using vulnerable PeerTube versions may face regulatory penalties for failing to protect personal and health information.

Mitigation Strategies

Upgrade to PeerTube v8.1.8 immediately. Invalidate all OAuth tokens and require users to log in again. Remove the malicious peertube-plugin-google-analytics-js plugin. Disable root token usage via config. Review instances for signs of compromise like new users, videos, or plugins.

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