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Ubuntu 26.04 LTS EditorConfig Critical DoS Crash USN-8238-1

ubuntu
Calendar Grey May 6, 2026
Dist Ubuntu Esm H88
EditorConfig has a critical flaw that could result in DoS by crashing when handling malformed files in Ubuntu.
EditorConfig could be made to crash if it opened a specially crafted file.

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.

Topics%20covered

Topics Covered

security advisory denial of service critical DoS Ubuntu editorconfig-core

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

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8238-1

Topics%20covered

Topics Covered

security advisory denial of service critical DoS Ubuntu editorconfig-core

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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