Is CVE-2026-42885 actively exploited?

No active exploitation of CVE-2026-42885 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42885 be exploited remotely?

Yes. CVE-2026-42885 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42885?

CVE-2026-42885 has a CVSS score of 4.3 (MEDIUM).

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MEDIUM

CVE-2026-42885

CWE-22Published: May 11, 2026· Updated: May 12, 2026

4.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:10.7th

Official Description

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the POST /api/filesystem/pathexists endpoint uses String.startsWith() to validate that a resolved file path is within a library folder. This check fails for sibling directories whose names share a common prefix (e.g., /audiobooks vs /audiobooks-private), allowing authenticated users with upload permission to probe file existence outside their authorized library folder boundaries. This vulnerability is fixed in 2.32.2.

NVD Source

Technical Analysis

CVE-2026-42885 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.