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Vulnerability record · CVE-2026-41065 · published 4 June 2026

CVE-2026-41065: Tautulli is a Python based monitoring and tracking tool for Plex Media Server.

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 are vulnerable to remote code execution via the newsletter custom template directory feature. On a fresh install before the setup wizard is completed, all management endpoints are completely unauthenticated. An attacker can create a newsletter agent, point the custom template directory to an attacker-controlled SMB share serving a malicious Mako template, and trigger execution via the newsletter render endpoint, all with zero credentials and no local access to the target system. On a completed install with credentials configured, the same chain is exploitable by any admin. Version 2.17.1 fixes the issue.

8.9 CVSS 4.0 High EPSS 0.74% · top 47.4% CWE-1336 · CWE-1336 Deferred
8.9CVSS 4.0 base score
0.74%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
22 Jul 2026Last modified by NVD

Description

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 are vulnerable to remote code execution via the newsletter custom template directory feature. On a fresh install before the setup wizard is completed, all management endpoints are completely unauthenticated. An attacker can create a newsletter agent, point the custom template directory to an attacker-controlled SMB share serving a malicious Mako template, and trigger execution via the newsletter render endpoint, all with zero credentials and no local access to the target system. On a completed install with credentials configured, the same chain is exploitable by any admin. Version 2.17.1 fixes the issue.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1
https://github.com/Tautulli/Tautulli/security/advisories/GHSA-68qx-mcf5-3jcp
https://github.com/Tautulli/Tautulli/security/advisories/GHSA-68qx-mcf5-3jcp

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Source: NIST National Vulnerability Database (record CVE-2026-41065), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.