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[USN-8767-1] Snapcast vulnerability

Posted on 15 September 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8767-1
September 15, 2026

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

- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Snapcast could be made to expose sensitive information or run programs if
it received specially crafted network traffic.

Software Description:
- snapcast: multiroom client-server audio player

Details:

It was discovered that Snapcast incorrectly handled crafted JSON-RPC
requests. A remote attacker could possibly use this issue to execute
arbitrary code or obtain sensitive information.

Update instructions:

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

Ubuntu 24.04 LTS
snapclient 0.27.0+dfsg-1ubuntu0.1~esm1
Available with Ubuntu Pro
snapserver 0.27.0+dfsg-1ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 22.04 LTS
snapclient 0.25.0+dfsg1-2ubuntu0.1~esm1
Available with Ubuntu Pro
snapserver 0.25.0+dfsg1-2ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 20.04 LTS
snapclient 0.18.1-1ubuntu0.1~esm1
Available with Ubuntu Pro
snapserver 0.18.1-1ubuntu0.1~esm1
Available with Ubuntu Pro

After a standard system update you need to restart Snapcast to make all
the necessary changes.

References:
https://ubuntu.com/security/notices/USN-8767-1
CVE-2023-36177

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