November 14, 2026

CVE Watchtower

CVE-2026-45381Tautulli Cross-site Scripting (XSS)

NVD

Vulnerability Summary

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to 2.17.2, the /search endpoint inserts its user-controlled query parameter into a JavaScript string in data/interfaces/default/search.html using manual escaping that handles quotes and slashes but not backslashes. A backslash-quote sequence can terminate the string, so an unauthenticated attacker can send a crafted link that executes script in the Tautulli web context when an authenticated user follows it. This issue is fixed in version 2.17.2.
Severity Level
MEDIUM
Published Date
Sep 21, 2026
Last Modified
Sep 29, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.57%Probability
Root Weakness (CWE)
CWE-79: Cross-site Scripting (XSS) β†—
The software does not neutralize user-controllable input before it is placed in output that is used as a web page.

Affected & Patched Versions

Affected Versions
  • Tautulli <= 2.17.1
Patched Versions
  • Tautulli 2.17.2

What to do

Fix it during your normal patch cycle. No exploitation is confirmed yet.

  1. Check whether you run Tautulli and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Sep 21, 2026Published
  • Sep 29, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

Get notified about new Tautulli CVEsYou are reading CVE-2026-45381. Get an email when KEV listings, exploits or new CVEs match your stack.
Set up CVE alerts

More Tautulli CVEs

External References

Data last checked: Nov 14, 2026 17:12 UTC