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

Source: https://junglewise.ai/threats/cve-2026-96651-plex-media-server-before-1-43-3-10861-builds-a-file-path-from-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-23. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/media-server). Vendors: [Plex](https://junglewise.ai/threats/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

- [https://forums.plex.tv/t/plex-media-server/30447/711](https://forums.plex.tv/t/plex-media-server/30447/711)
- [https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json](https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json)

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