HIGH 7.8 NVD
CVE-2026-61898
The Ubuntu-specific language helper scripts (save-to-pam-env, update-langlist) shipped with accountsservice before 23.13.9-8ubuntu7 treat the user-controlled LA
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.
References
- https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/2157985
- https://ubuntu.com/security/CVE-2026-61898
This high severity vulnerability with a CVSS score of 7.8 was published on 2026-08-20 via NVD.
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