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TI-2026-29704 Aliases CVE-2026-41065

Tautulli Vulnerable to Unauthenticated/Authenticated Remote Code Execution via Newsletter Custom Template Directory

Priority HIGH 80CWE-1336Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-1336.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00434 37th percentileScored 2026-11-07
Fix Fixed Tautulli (Tautulli): 2.17.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TautulliTautullibefore 2.17.12.17.1Patch availableCNA
  • Tautulli VendorTautulli Affected before 2.17.1 Fixed in 2.17.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:tautulli:tautulli:*:*:*:*:*:*:*:*——Tautulli
  • cpe:2.3:a:tautulli:tautulli:*:*:*:*:*:*:*:* Versions — — ·Tautulli

Remediation

  • Fix · CNA Tautulli (Tautulli) Fixed in 2.17.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-41065
  2. 2026-10-25 EPSS moved to the below the 50th percentile

References

Other 2

  • TI-2026-24384 Tautulli: Unauthenticated Path Traversal in `/newsletter/image/images` endpoint CVSS 4.0HIGH 8.7
  • TI-2026-32030 Tautulli vulnerable to unauthenticated SSRF in /image/<hash> via attacker-seeded image hash replay CVSS 3.1CRITICAL 9.9
  • TI-2025-36419 Tautulli vulnerable to Unauthenticated Path Traversal in `real_pms_image_proxy` CVSS 3.1HIGH 8.6
  • TI-2026-32028 Tautulli has stored XSS in logFile via guest-controlled log_js_errors input CVSS 3.1HIGH 8.9
  • TI-2026-32029 Taultulli has CSRF in /configUpdate via missing anti-CSRF and method restriction that allows admin credential takeover CVSS 3.1HIGH 8.8
  • TI-2025-36418 Tautulli vulnerable to Unauthenticated Path Traversal in `/image` endpoint CVSS 3.1HIGH 8.6
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences