PatchTheCVECVE-2026-31804: Tautulli is a Python based monitoring and tracking tool for Plex Media Server
CVE-2026-31804 is a medium-severity flaw (CVSS 4.0) affecting tautulli. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the /pms_image_proxy endpoint accepts a user-supplied img parameter and forwards it to Plex Media Server's /photo/:/ transcode transcoder without authentication and without restricting the scheme or host. The endpoint is intentionally excluded from all authentication checks in webstart.py, any value of img beginning with http is passed directly
Why this priority
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.0 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 79%) |
| CISA exploited list | No |
| Weakness | CWE-918 |
| Published | 2026-03-30 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-31804?
tautulli: upgrade to 2.17.0. Exact commands for each OS are on this page.
Is CVE-2026-31804 being exploited?
CVE-2026-31804 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-31804 affect?
CVE-2026-31804 affects tautulli. Severity is medium (CVSS 4.0). Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the /pms_image_proxy endpoint accepts a user-supplied img parameter and forwards it to Plex Media Server's /photo/:/ transcode transcode
How urgent is CVE-2026-31804?
Priority 29/100. Public exploit reference; Remotely exploitable, no login, no user action
Software pages
Python vulnerabilities · Plex vulnerabilities
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