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CVE-2026-41065— Tautulli Vulnerable to Unauthenticated/Authenticated Remote Code Execution via Newsletter Custom Template Directory

Quick assessment

Affected
Tautulli Tautulli
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tautulli是Tautulli开源的一款用于监控Plex Media Server（媒体服务器）的应用程序。 Tautulli 2.17.1之前版本存在安全漏洞，该漏洞源于新闻通讯自定义模板目录功能，可能导致远程代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 0.43% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
Tautulli Tautulli < 2.17.1 affected
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I. Basic Information for CVE-2026-41065

Vulnerability Information
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Vulnerability Title
Tautulli Vulnerable to Unauthenticated/Authenticated Remote Code Execution via Newsletter Custom Template Directory
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
Source: CVE Program / CVE List V5
Vulnerability Title
Tautulli 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tautulli是Tautulli开源的一款用于监控Plex Media Server（媒体服务器）的应用程序。 Tautulli 2.17.1之前版本存在安全漏洞，该漏洞源于新闻通讯自定义模板目录功能，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tautulli Tautulli < 2.17.1 -

II. Public POCs for CVE-2026-41065

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III. Intelligence Information for CVE-2026-41065

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Vendor Advisories for CVE-2026-41065 (1)

Vendor Pages for CVE-2026-41065 (1)

Same Patch Batch · Tautulli · 2026-06-04 · 5 CVEs total

CVE-2026-43986 9.9 CRITICAL Tautulli vulnerable to unauthenticated SSRF in /image/<hash> via attacker-seeded image has
CVE-2026-43984 8.9 HIGH Tautulli has stored XSS in logFile via guest-controlled log_js_errors input
CVE-2026-43985 8.8 HIGH Taultulli has CSRF in /configUpdate via missing anti-CSRF and method restriction that allo
CVE-2026-40605 Tautulli Vulnerable to Authenticated Path Traversal in Cache Deletion API

IV. Related Vulnerabilities

Same product: Tautulli
Same vendor: Tautulli
Same weakness: CWE-1336

V. Comments for CVE-2026-41065

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