CVE-2026-96651: Plex Media Server path traversal in agent endpoint

CVE-2026-96651 · Severity: medium · CVSS 6.5 · Published 2026-09-23

Plex Media Server, a media streaming and management application, contains a path traversal vulnerability in its /system/agents/media/get endpoint that allows attackers to read arbitrary files from the server. An attacker with a valid session token or access from the local network could read sensitive files, including the PlexOnlineToken that grants full control of both the Plex account and server.

Technologies: Plex Media Server. Vendors: Plex.

Quick answers

Is CVE-2026-96651 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-96651 being exploited in the wild.
How severe is CVE-2026-96651?
Medium severity, with a CVSS score of 6.5, published 23 September 2026.
Which products and versions are affected?
Plex Media Server before 1.43.3.10861.
Is there a fix for CVE-2026-96651?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-96651 attacked?
It is attacked over the network or from the adjacent network, in a hosted service.
Am I affected by CVE-2026-96651?
Check whether you run Plex Media Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in the url parameter handler for /system/agents/media/get, which constructs file paths without sanitizing ../ sequences, enabling directory traversal attacks. Remote attackers with a valid session token or LAN-adjacent attackers spoofing an X-Forwarded-For header can exploit this to access any file readable by the Media Server process. A patch is available in version 1.43.3.10861 and later.

Affected products

  • Plex Media Server before 1.43.3.10861

Timeline

  • 2026-09-23: disclosed

References

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