Is CVE-2026-49339 actively exploited?

No active exploitation of CVE-2026-49339 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-49339 be exploited remotely?

Yes. CVE-2026-49339 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-49339?

CVE-2026-49339 has a CVSS score of 7.1 (HIGH).

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HIGH

CVE-2026-49339

CWE-22Published: June 19, 2026· Updated: Jun 23, 2026

7.1

CVSS v3.1

Official Description

gonic is a music streaming server / free-software subsonic server API implementation. The maintainer's fix in commit `6dd71e6a3c966867ef8c900d359a7df75789f410` added an ownership check based on `playlist.UserID`. However, `playlist.UserID` is derived from the first path segment of the attacker-controlled playlist ID, with no path containment on the resolved file path. Any authenticated Subsonic user can therefore bypass the ownership check and read any other user's playlist, delete any other user's playlist, and probe arbitrary file paths on the host for existence/readability. This is a bypass of the boundary the `6dd71e6` fix is trying to enforce; it is closely related to the original GONIC-1 IDOR but uses a different primitive (path traversal in the `id` parameter rather than direct cross-user access). Commit 0824bed88f6bbc490ba28bf09d28e5dfeb07b445 in version 0.21.0 fixes the issue.

NVD Source

Technical Analysis

CVE-2026-49339 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 full integrity compromise (data manipulation), with a CVSS base score of 7.1.