CVE-2026-71209

Published: Aug 5, 2026Modified: Oct 24, 2026Deferred

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (Secondary)

Description

audiobookshelf's authentication-exemption check (server/routers/Auth.js) matches unauthenticated-allowed GET routes against req.path via a regex requiring a literal /items/:id/cover or /authors/:id/image shape, where req.path retains %2F sequences URL-encoded. CacheManager.handleCoverCache then joins this decoded value into a cache file path and streams the result before any database-backed ownership check.

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (3)

https://github.com/advplyr/audiobookshelf

Source: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c

https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-pg8v-5jcv-wrvw

Source: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c

https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-pg8v-5jcv-wrvw

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.