Ubuntu USN · USN-8238-2

EditorConfig vulnerability

Published: Tue, 02 Jun 2026 14:05

CVE-2026-40489

Summary

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

Details

USN-8238-1 fixed a vulnerability in EditorConfig. This update contains the corresponding fix for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. Original advisory 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.

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu bionic

editorconfig-core→0.12.1-1.1ubuntu0.18.04.1~esm3apt_upgrade_esm
Fixed at 0.12.1-1.1ubuntu0.18.04.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig-core=0.12.1-1.1ubuntu0.18.04.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
editorconfig→0.12.1-1.1ubuntu0.18.04.1~esm3apt_upgrade_esm
Fixed at 0.12.1-1.1ubuntu0.18.04.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig=0.12.1-1.1ubuntu0.18.04.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
editorconfig-doc→0.12.1-1.1ubuntu0.18.04.1~esm3apt_upgrade_esm
Fixed at 0.12.1-1.1ubuntu0.18.04.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig-doc=0.12.1-1.1ubuntu0.18.04.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libeditorconfig-dev→0.12.1-1.1ubuntu0.18.04.1~esm3apt_upgrade_esm
Fixed at 0.12.1-1.1ubuntu0.18.04.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libeditorconfig-dev=0.12.1-1.1ubuntu0.18.04.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libeditorconfig0→0.12.1-1.1ubuntu0.18.04.1~esm3apt_upgrade_esm
Fixed at 0.12.1-1.1ubuntu0.18.04.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libeditorconfig0=0.12.1-1.1ubuntu0.18.04.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu focal

editorconfig-core→0.12.1-1.1+deb11u1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 0.12.1-1.1+deb11u1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig-core=0.12.1-1.1+deb11u1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
editorconfig→0.12.1-1.1+deb11u1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 0.12.1-1.1+deb11u1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig=0.12.1-1.1+deb11u1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
editorconfig-doc→0.12.1-1.1+deb11u1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 0.12.1-1.1+deb11u1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig-doc=0.12.1-1.1+deb11u1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libeditorconfig-dev→0.12.1-1.1+deb11u1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 0.12.1-1.1+deb11u1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libeditorconfig-dev=0.12.1-1.1+deb11u1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libeditorconfig0→0.12.1-1.1+deb11u1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 0.12.1-1.1+deb11u1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libeditorconfig0=0.12.1-1.1+deb11u1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu jammy

editorconfig-core→0.12.5-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.5-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig-core=0.12.5-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
editorconfig→0.12.5-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.5-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig=0.12.5-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
editorconfig-doc→0.12.5-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.5-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig-doc=0.12.5-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libeditorconfig-dev→0.12.5-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.5-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libeditorconfig-dev=0.12.5-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libeditorconfig0→0.12.5-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.5-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libeditorconfig0=0.12.5-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu xenial

editorconfig-core→0.12.0-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.0-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig-core=0.12.0-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
editorconfig→0.12.0-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.0-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig=0.12.0-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
editorconfig-doc→0.12.0-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.0-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y editorconfig-doc=0.12.0-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libeditorconfig-dev→0.12.0-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.0-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libeditorconfig-dev=0.12.0-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libeditorconfig0→0.12.0-2ubuntu0.1~esm3apt_upgrade_esm
Fixed at 0.12.0-2ubuntu0.1~esm3 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libeditorconfig0=0.12.0-2ubuntu0.1~esm3
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Are YOU affected by USN-8238-2?

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