Remote Code Execution Vulnerability in Tautulli for Plex Media Server
CVE-2026-41065

8.9HIGH

Key Information:

Vendor

Tautulli

Status
Tautulli
Vendor
CVE Published:
4 June 2026

What is CVE-2026-41065?

Tautulli, a Python-based monitoring tool for Plex Media Server, has a vulnerability that allows remote code execution through its newsletter custom template directory feature. When installed fresh, prior to completing the setup wizard, all management endpoints are left completely unauthenticated. This permits an attacker to create a newsletter agent that points to an attacker-controlled SMB share containing a malicious Mako template. By utilizing the newsletter render endpoint, execution can be triggered without any credentials or local access. Even with completed installations where credentials are configured, any admin can exploit this vulnerability. The issue is resolved in version 2.17.1.

Affected Version(s)

Tautulli < 2.17.1

References

https://github.com/Tautulli/Tautulli/security/advisories/...
x_refsource_CONFIRM
https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1
x_refsource_MISC

CVSS V4

Score:
8.9
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.