CVE-2026-73085 Audiobookshelf: Refresh Token Accepted on Resource Endpoints

Medium 5.3 Published Updated

Attackers can use refresh tokens to authenticate as users on resource endpoints, leading to account takeover in Audiobookshelf.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-73085?

CVE-2026-73085 is a medium-severity authentication bypass vulnerability in advplyr audiobookshelf, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.36.0, the jwtAuthCheck function in server/auth/TokenManager.js treats JWTs with the refresh token type as bearer access tokens on API and WebSocket resource endpoints such as /api/me instead of restricting them to /auth/refresh, allowing refresh tokens to authenticate as the associated users. This issue is fixed in version 2.36.0.

Weakness: CWE-287

Which versions are affected by CVE-2026-73085?

How do I fix CVE-2026-73085?

No fix has been published for CVE-2026-73085 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-73085 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73085 exists.

Sources

Also known as GHSA-798w-wv6c-2c3h.

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