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CVE-2026-71209

audiobookshelf - %2F Encoding Discrepancy Bypasses Cover/Image Auth Exemption Regex, Enabling Unauthenticated Path Traversal PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
advplyr / audiobookshelfaffected 2.19.1 through 2.35.1

CWE

CWE-22

References

ADP enrichment

CISA-ADP

No English description supplied.