CVE-2026-23877

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

Upgrade swing music to 2.1.4 or later.

Q: Is CVE-2026-23877 being actively exploited?

Not that we know of. CVE-2026-23877 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.51% is the estimated probability that it will be exploited in the next 30 days. That is higher than 41% of all scored CVEs.

Q: How severe is CVE-2026-23877?

CVE-2026-23877 has a CVSS v3 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-23877 affect?

Published advisories record a fix for swing music (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

MEDIUM

4.3

CVSS v3

NVD

Description

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.

CWE-25 CWE-284Improper Access Control

How to fix

Remediation Available

swing musicNVD

Affected:< 2.1.4Fixed in:2.1.4CVE-2026-23877derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.51%probability of exploitation in 30 days

41stpercentile

Moderate risk: more likely to be exploited than 41% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Related Vulnerabilities

Other CWE-25 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-20775	High	7.8	12%	KEV	Fix
CVE-2025-68916	Critical	9.1	2.3%	-	Fix
CVE-2023-52138	High	8.2	1.7%	-	Fix
CVE-2023-52076	High	8.5	1.0%	-	Fix
CVE-2023-6118	High	7.5	0.8%	-	Fix
CVE-2023-6947	High	7.7	0.7%	-	Fix

Common questions

How do I fix CVE-2026-23877?

Upgrade swing music to 2.1.4 or later.

Is CVE-2026-23877 being actively exploited?

Not that we know of. CVE-2026-23877 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.51% is the estimated probability that it will be exploited in the next 30 days. That is higher than 41% of all scored CVEs.

How severe is CVE-2026-23877?

CVE-2026-23877 has a CVSS v3 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-23877 affect?

Published advisories record a fix for swing music (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-13.