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[USN-8747-1] Beets vulnerability

Posted on 10 September 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8747-1
September 10, 2026

beets vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Beets could allow malicious media metadata to compromise its web interface.

Software Description:
- beets: music tagger and library organizer

Details:

It was discovered that Beets incorrectly escaped untrusted media metadata
in its web interface. An attacker could possibly use this issue to inject
arbitrary HTML or execute arbitrary JavaScript code in a user's browser.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.04 LTS
beets 2.5.1-4ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 24.04 LTS
beets 1.6.0-8ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 22.04 LTS
beets 1.6.0-1ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 20.04 LTS
beets 1.4.9-4ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 18.04 LTS
beets 1.4.6-2ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 16.04 LTS
beets 1.3.8+dfsg-2ubuntu0.1~esm1
Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-8747-1
CVE-2026-42052

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