CVE-2026-49340

HIGH EPSS 18.5%

Published Jun 19, 20261w ago · Modified Jun 23, 20261w ago

8.1 CVSS 3.1

High

Published Jun 19, 2026 1w ago

Last Modified Jun 23, 2026 1w ago

Description

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.

CVSS Details

Base Score

8.1

Exploitability

2.8

Impact

5.2

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality None

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

18.5% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 3

CWE-22 Path Traversal Resource Mgmt

CWE-697

CWE-732

References 1

github.com https://github.com/sentriz/gonic/security/advisories/GHSA-4gxv-p5g5-j7w7

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.