CVE-2026-41065
Tautulli Vulnerable to Unauthenticated/Authenticated Remote Code Execution via Newsletter Custom Template Directory
- State
- Published
- Severity
- 8.9 High
- Published
- Jun 4, 2026
- Updated
- Jun 4, 2026
- Reserved
- Apr 16, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.9 High | 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 | GitHub_M |
Weaknesses
- CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine
Affected Products
| Product | Versions |
|---|---|
TautulliTautulli |
|
References
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