Server-Side Request Forgery Vulnerability in Plex Media Server
CVE-2026-96652

5.3MEDIUM

Key Information:

Vendor

Plex

Status
Media Server
Vendor
CVE Published:
23 September 2026

What is CVE-2026-96652?

A vulnerability exists in Plex Media Server that allows for Server-Side Request Forgery (SSRF) through the '/player/timeline' endpoint. By exploiting this flaw, an attacker can manipulate the 'protocol' parameter using any X-Plex-Token value, enabling them to send POST requests to any external destination of their choosing. This could lead to unauthorized access to sensitive data or services, underscoring the need for users to update to the latest version to mitigate potential risks.

Affected Version(s)

Media Server 0 < 1.43.3.10861

Media Server 1.43.3.10861

References

https://raw.githubusercontent.com/cisagov/CSAF/develop/cs...
third-party-advisory
https://forums.plex.tv/t/plex-media-server/30447/711
release-notes
https://www.cve.org/CVERecord?id=CVE-2026-96652
vdb-entry

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Zach Main
.