Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-73090

PeerTube: Cross-origin remote video takeover via Update activity
Back to all
CVE

CVE-2026-73090

PeerTube: Cross-origin remote video takeover via Update activity

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.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

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://nvd.nist.gov/vuln/detail/CVE-2026-73090, https://github.com/Chocobozzz/PeerTube/commit/63d487d2a4a2a0e36af8c0ccb888cd23725bf7f2

Severity

9.3

CVSS Score
0
10

Basic Information

Base CVSS
9.3
EPSS Probability
0.00224%
EPSS Percentile
0.12846%
Introduced Version
0
Fix Available
296e63811479e55c8813a2691c3e577822800e22

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading