What is CVE-2026-73291?

CVE-2026-73291 is a high-severity vulnerability in Seerr-team Seerr, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-08-12.

How severe is CVE-2026-73291?

High severity. CVSS v3 base score is 7.1 out of 10.

RCE in Seerr-team Seerr

CVE-2026-73291

Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby. Prior to version 3.4.0, Seerr's ImageProxy in server/lib/imageproxy.ts uses the upstream ETag and Content-Type response headers to build a cache file…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H.

Affected products

Seerr-team Seerr — versions < 3.4.0

Weakness classification (CWE)

CWE-22 — Path Traversal
CWE-94 — Code Injection

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-73291?: CVE-2026-73291 is a high-severity vulnerability in Seerr-team Seerr, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-08-12.
How severe is CVE-2026-73291?: High severity. CVSS v3 base score is 7.1 out of 10.