Vulnerability DatabaseCVE-2026-73090
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CVE-2026-73090
Published:August 11, 2026
Updated:August 31, 2026
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.
Affected Packages
https://github.com/Chocobozzz/PeerTube.git (GITHUB):
Affected version(s) >=v8.0.0 <v8.2.2
Fix Suggestion:
Update to version v8.2.2
Related Resources (5)
https://nvd.nist.gov/vuln/detail/CVE-2026-73090
https://github.com/Chocobozzz/PeerTube/releases/tag/v8.2.2
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73090.json
https://github.com/Chocobozzz/PeerTube/security/advisories/GHSA-g9p4-f7h8-hc86
https://github.com/Chocobozzz/PeerTube/commit/63d487d2a4a2a0e36af8c0ccb888cd23725bf7f2
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CVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
CWE-863
EPSS
Base Score:
0.22