Is CVE-2026-42883 actively exploited?

No active exploitation of CVE-2026-42883 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42883 be exploited remotely?

Yes. CVE-2026-42883 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42883?

CVE-2026-42883 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-42883

CWE-863Published: May 11, 2026· Updated: May 13, 2026

6.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.1th

Official Description

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the GET /api/libraries/:id/download endpoint validates that the requesting user has access to the library specified in the URL path, but fetches downloadable items solely by attacker-provided IDs without constraining them to that library. An authenticated user with download permission and access to any one library can exfiltrate the full file contents of items belonging to any other library, including libraries they are explicitly denied access to. This vulnerability is fixed in 2.32.2.

NVD Source

Technical Analysis

CVE-2026-42883 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.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.