What is CVE-2026-27793?

CVE-2026-27793 is a medium-severity vulnerability in Seerr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-02-27.

How severe is CVE-2026-27793?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Seerr

CVE-2026-27793

Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby. Prior to version 3.1.0, the `GET /api/v1/user/:id` endpoint returns the full settings object for any user, including Pushover, Pushbullet, and Telegr…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (14.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Seerr
Seerr-team Seerr — versions < 3.1.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

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

Frequently asked questions

What is CVE-2026-27793?: CVE-2026-27793 is a medium-severity vulnerability in Seerr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-02-27.
How severe is CVE-2026-27793?: Medium severity. CVSS v3 base score is 6.5 out of 10.