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[USN-8238-1] EditorConfig vulnerability

Posted on 06 May 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8238-1
May 06, 2026

editorconfig-core vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 25.10
- Ubuntu 24.04 LTS

Summary:

EditorConfig could be made to crash if it opened a specially crafted file.

Software Description:
- editorconfig-core: coding style indenter across editors

Details:

It was discovered that EditorConfig incorrectly handled specially crafted
configuration files. A local attacker could possibly use this issue to
cause EditorConfig to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 26.04 LTS
editorconfig 0.12.10+~0.17.1-3ubuntu0.1
libeditorconfig0 0.12.10+~0.17.1-3ubuntu0.1

Ubuntu 25.10
editorconfig 0.12.9+~0.17.1-1ubuntu2.1
libeditorconfig0 0.12.9+~0.17.1-1ubuntu2.1

Ubuntu 24.04 LTS
editorconfig 0.12.7-0.1ubuntu0.1
libeditorconfig0 0.12.7-0.1ubuntu0.1

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

References:
https://ubuntu.com/security/notices/USN-8238-1
CVE-2026-40489

Package Information:
https://launchpad.net/ubuntu/+source/editorconfig-core/0.12.10+~0.17.1-3ubuntu0.1
https://launchpad.net/ubuntu/+source/editorconfig-core/0.12.9+~0.17.1-1ubuntu2.1
https://launchpad.net/ubuntu/+source/editorconfig-core/0.12.7-0.1ubuntu0.1

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