What is CVE-2026-31831?

CVE-2026-31831 is a high-severity vulnerability in Tautulli, classified under Relative Path Traversal. CVSS score: 7.5/10. Published 2026-03-30.

How severe is CVE-2026-31831?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Tautulli

CVE-2026-31831

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.

EPSS: 0.016 (73.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Tautulli — versions < 2.17.0

Weakness classification (CWE)

CWE-23 — Relative Path Traversal

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-31831?: CVE-2026-31831 is a high-severity vulnerability in Tautulli, classified under Relative Path Traversal. CVSS score: 7.5/10. Published 2026-03-30.
How severe is CVE-2026-31831?: High severity. CVSS v3 base score is 7.5 out of 10.