CVE Catalog

CVE-2026-65696

MediumCVSS 5.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.26%

17th percentile - higher than 17% of all known CVEs

Summary

Overseerr through 1.35.0 contains an authorization bypass through user-controlled key vulnerability in the push subscription API. Authenticated users can list, read, and delete any other user's push subscriptions by supplying an arbitrary userId in path parameters. The missing ownership check allows access to target user records without the filteredFields filter, leaking sensitive data including email addresses and plexId values.

Risk Assessment

An attacker can access sensitive data of other users, including email addresses and Plex IDs, potentially leading to privacy breaches and further attacks.

Recommendation

Upgrade Overseerr to a version above 1.35.0 or apply a security patch.

Related vulnerabilities

Original NVD description (English source)

Overseerr through 1.35.0 contains an authorization bypass through user-controlled key vulnerability in the push subscription API that allows authenticated users to list, read, and delete any other user's push subscriptions by supplying an arbitrary userId in the path parameters. Attackers can exploit the missing ownership check in the affected handlers to access target user records without the filteredFields filter, leaking sensitive data including email addresses and plexId values.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS