CVE-2026-31831

Name: CVE-2026-31831
Creator: NVD / NIST
Published: 2026-03-30T20:16:21.673+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2026-31831 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the /newsletter/image/images API endpoint is vulnerable to path traversal, allowing unauthenticated attackers to read arbitrary files from the application server's filesystem. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the /newsletter/image/images API endpoint is vulnerable to path traversal, allowing unauthenticated attackers to read arbitrary files from the application server's filesystem. This issue has been patched in version 2.17.0.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS 4.0

8.7/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.48%

37.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-23

Affected Software

Vendor	Product	Versions
Tautulli	Tautulli	< 2.17.0

References

https://github.com/Tautulli/Tautulli/releases/tag/v2.17.0Release Notes
https://github.com/Tautulli/Tautulli/security/advisories/GHSA-xp55-2pf4-fv8mExploit, Vendor Advisory
https://github.com/Tautulli/Tautulli/security/advisories/GHSA-xp55-2pf4-fv8mExploit, Vendor Advisory

Timeline

Published: Mar 30, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-31831?

How severe is CVE-2026-31831?

CVE-2026-31831 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2026-31831?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-31831?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST