CVE-2026-49340

gonic is a music streaming server / free-software subsonic server API implementation. Prior to version 0.21.0, a logic error in `ServeCreateOrUpdatePlaylist` allows any authenticated Subsonic user (including non-admin) to write playlist M3U content to an attacker-controlled absolute filesystem path on the gonic host, and to create intermediate directories with `0o777` permissions. The bug is independent of CVE-2026-49338 and CVE-2026-49339. It is an unreachable guard clause combined with no path containment in `Store.Write`. Version 0.21.0 patches the issue.
Configurations

No configuration.

History

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Information

Published : 2026-06-19 19:16

Updated : 2026-06-23 15:42


NVD link : CVE-2026-49340

Mitre link : CVE-2026-49340

CVE.ORG link : CVE-2026-49340


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Products Affected

No product.

CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-697

Incorrect Comparison

CWE-732

Incorrect Permission Assignment for Critical Resource