CVE-2023-51665: Audiobookshelf vulnerable to Blind SSRF in `Auth.js`

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-27 · updated 2026-06-17
Weakness: CWE-918

Description

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.7.0, Audiobookshelf is vulnerable to unauthenticated blind server-side request (SSRF) vulnerability in Auth.js. This vulnerability has been addressed in version 2.7.0. There are no known workarounds for this vulnerability.

Affected products

advplyr audiobookshelf: before 2.7.0 — fixed in 2.7.0

How to fix

Upgrade to a fixed version: advplyr audiobookshelf 2.7.0. Check the vendor advisory for mitigations.

References

https://github.com/advplyr/audiobookshelf/commit/728496010cbfcee5b7b54001c9f79e02ede30d82
https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-gjgj-98v3-47pg
https://github.com/advplyr/audiobookshelf/commit/728496010cbfcee5b7b54001c9f79e02ede30d82
https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-gjgj-98v3-47pg

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