CVE-2026-41065

HIGHPre-NVD 8.98.9—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 65% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
8.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
8.9
EG Score
8.9(medium)
EPSS
35.0%
KEV
Not listed

Published

June 4, 2026

Last Modified

June 4, 2026

Advisory Details (2)

Auto-updated Jun 4, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_release.
github Patch Available🟡 PoC Available

Unauthenticated/Authenticated Remote Code Execution via Newsletter Custom Template Directory · Advisory · Tautulli/Tautulli · GitHub

https://github.com/Tautulli/Tautulli/security/advisories/GHSA-68qx-mcf5-3jcp
github_release Patch Available

Tautulli v2.17.1

Patch available: Tautulli/Tautulli v2.17.1

https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 73× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-11 12:09 UTCEG score recompute
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  1. 2026-06-28 17:10 UTCEG score recompute
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Frequently asked(5)

What is CVE-2026-41065?
CVE-2026-41065 is a high vulnerability published on June 4, 2026. 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…
When was CVE-2026-41065 disclosed?
CVE-2026-41065 was first published in the National Vulnerability Database on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41065 actively exploited?
CVE-2026-41065 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-41065?
CVE-2026-41065 has a CVSS v3 base score of 8.9 (NVD).
How do I remediate CVE-2026-41065?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41065, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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