USN-8944-1: ca-certificates update

Publication date

20 October 2026

Overview

The CA certificates in the ca-certificates package were updated.


Packages

Details

This update removes the "emSign ECC Root CA - G3" CA certificate due to
intermediate CA certificates being compromised.

In addition, in Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS,
the ca-certificates package contained outdated CA certificates. This update
refreshes the included certificates to those contained in the 2.90 version
of the Mozilla certificate authority bundle.

This update removes the "emSign ECC Root CA - G3" CA certificate due to
intermediate CA certificates being compromised.

In addition, in Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS,
the ca-certificates package contained outdated CA certificates. This update
refreshes the included certificates to those contained in the 2.90 version
of the Mozilla certificate authority bundle.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
26.10 stonking ca-certificates –  20260816ubuntu0.26.10.1
26.04 LTS resolute ca-certificates –  20260816ubuntu0.26.04.1
24.04 LTS noble ca-certificates –  20260816ubuntu0.24.04.1
22.04 LTS jammy ca-certificates –  20260816ubuntu0.22.04.1

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