accountsservice: The Ubuntu-specific language helper scripts (save-to-pam-env, update-langlist) shipped with accountsservice before 23...
CVE-2026-61898 is fixed in 3 products on 1 platform, first by accountsservice 23.13.9-8ubuntu5.2, released July 21, 2026. It is not reported as exploited. Patch Radar priority: High.
The Ubuntu-specific language helper scripts (save-to-pam-env, update-langlist) shipped with accountsservice before 23.13.9-8ubuntu7 treat the user-controlled LANGUAGE entry in ~/.pam_environment as trusted input. The value is interpolated unescaped into a GNU sed replacement expression, allowing an attacker to inject a sed 'e' flag and arbitrary shell commands that execute with the privileges of the AccountsService helper process (real UID 0) via the SetLanguage D-Bus method.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| accountsservice · Ubuntu 18.04.6 LTS (bionic) | 0.6.45-1ubuntu1.3+esm2 | accountsservice 0.6.45-1ubuntu1.3+esm2 | Jul 23, 2026 |
| accountsservice · Ubuntu 20.04 LTS (focal) | 0.6.55-0ubuntu12~20.04.7+esm1 | accountsservice 0.6.55-0ubuntu12~20.04.7+esm1 | Jul 23, 2026 |
| accountsservice · Ubuntu 22.04.1 LTS (jammy) | 22.07.5-2ubuntu1.6 | accountsservice 22.07.5-2ubuntu1.6 | Jul 23, 2026 |
| accountsservice · Ubuntu 24.04.5 LTS (noble) | 23.13.9-2ubuntu6.1 | accountsservice 23.13.9-2ubuntu6.1 | Jul 23, 2026 |
| accountsservice · Ubuntu 26.04.1 LTS (resolute) | 23.13.9-8ubuntu5.2 | accountsservice 23.13.9-8ubuntu5.2 | Jul 21, 2026 |
| gir1.2-accountsservice-1.0 · Ubuntu 18.04.6 LTS (bionic) | 0.6.45-1ubuntu1.3+esm2 | gir1.2-accountsservice-1.0 0.6.45-1ubuntu1.3+esm2 | Jul 23, 2026 |
| gir1.2-accountsservice-1.0 · Ubuntu 20.04 LTS (focal) | 0.6.55-0ubuntu12~20.04.7+esm1 | gir1.2-accountsservice-1.0 0.6.55-0ubuntu12~20.04.7+esm1 | Jul 23, 2026 |
| gir1.2-accountsservice-1.0 · Ubuntu 22.04.1 LTS (jammy) | 22.07.5-2ubuntu1.6 | gir1.2-accountsservice-1.0 22.07.5-2ubuntu1.6 | Jul 23, 2026 |
| gir1.2-accountsservice-1.0 · Ubuntu 24.04.5 LTS (noble) | 23.13.9-2ubuntu6.1 | gir1.2-accountsservice-1.0 23.13.9-2ubuntu6.1 | Jul 23, 2026 |
| gir1.2-accountsservice-1.0 · Ubuntu 26.04.1 LTS (resolute) | 23.13.9-8ubuntu5.2 | gir1.2-accountsservice-1.0 23.13.9-8ubuntu5.2 | Jul 21, 2026 |
| libaccountsservice0 · Ubuntu 18.04.6 LTS (bionic) | 0.6.45-1ubuntu1.3+esm2 | libaccountsservice0 0.6.45-1ubuntu1.3+esm2 | Jul 23, 2026 |
| libaccountsservice0 · Ubuntu 20.04 LTS (focal) | 0.6.55-0ubuntu12~20.04.7+esm1 | libaccountsservice0 0.6.55-0ubuntu12~20.04.7+esm1 | Jul 23, 2026 |
| libaccountsservice0 · Ubuntu 22.04.1 LTS (jammy) | 22.07.5-2ubuntu1.6 | libaccountsservice0 22.07.5-2ubuntu1.6 | Jul 23, 2026 |
| libaccountsservice0 · Ubuntu 24.04.5 LTS (noble) | 23.13.9-2ubuntu6.1 | libaccountsservice0 23.13.9-2ubuntu6.1 | Jul 23, 2026 |
| libaccountsservice0 · Ubuntu 26.04.1 LTS (resolute) | 23.13.9-8ubuntu5.2 | libaccountsservice0 23.13.9-8ubuntu5.2 | Jul 21, 2026 |
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