How severe is CVE-2026-23877?

CVE-2026-23877 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-23877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23877?

CVE-2026-23877 affects Swingmx Swing Music. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-23877?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-23877 have an EU (EUVD) identifier?

Yes. CVE-2026-23877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3284.

When was CVE-2026-23877 published?

CVE-2026-23877 was published on 2026-01-19 and last updated on 2026-06-17.

CVE-2026-23877

CVE-2026-23877 is a medium-severity vulnerability in Swingmx Swing Music with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-25.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 5.3
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3284
Weakness: CWE-25
Affected product: Swingmx Swing Music
Published: 2026-01-19
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-23877?: 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.
How severe is CVE-2026-23877?: CVE-2026-23877 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-23877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23877?: CVE-2026-23877 affects Swingmx Swing Music. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-23877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-23877 have an EU (EUVD) identifier?: Yes. CVE-2026-23877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3284.
When was CVE-2026-23877 published?: CVE-2026-23877 was published on 2026-01-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:swingmx:swing_music:*:*:*:*:*:*:*:*

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