CVE-2026-23877: Swing Music is a self-hosted music player for local audio files

Q: How do I fix CVE-2026-23877?

swing music: upgrade to 2.1.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-23877 being exploited?

CVE-2026-23877 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-23877 affect?

CVE-2026-23877 affects swing music. Severity is medium (CVSS 4.3). Swing Music is a self-hosted music player for local audio files. Prior to version 2.1.4, Swing Music's `list_folders()` function in the `/folder/dir-browser` endpoint is vulnerable to directory traversal attacks. Any authenticated user (inc

Q: How urgent is CVE-2026-23877?

Priority 32/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2026-23877 is a medium-severity flaw (CVSS 4.3) affecting swing music. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Swing Music is a self-hosted music player for local audio files. Prior to version 2.1.4, Swing Music's `list_folders()` function in the `/folder/dir-browser` endpoint is vulnerable to directory traversal attacks. Any authenticated user (including non-admin) can browse arbitrary directories on the server filesystem. Version 2.1.4 fixes the issue.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-25, CWE-284
Published	2026-01-19
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: swingmx

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-19 21:15 UTCPublished CVE record published
2026-06-17 10:22 UTCUpdated Record last modified

swingmx swing music UPGRADE

Affected: < 2.1.4

Fixed in: 2.1.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy swing-music || rpm -q swing-music || swing-music --version

2. UPGRADE to 2.1.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade swing-music

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade swing-music

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-23877?

swing music: upgrade to 2.1.4. Exact commands for each OS are on this page.

Is CVE-2026-23877 being exploited?

CVE-2026-23877 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-23877 affect?

CVE-2026-23877 affects swing music. Severity is medium (CVSS 4.3). Swing Music is a self-hosted music player for local audio files. Prior to version 2.1.4, Swing Music's `list_folders()` function in the `/folder/dir-browser` endpoint is vulnerable to directory traversal attacks. Any authenticated user (inc

How urgent is CVE-2026-23877?

Priority 32/100. Public exploit reference

References

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