CVE-2026-61898
Last modified
CVE-2026-61898 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Canonical | accountsservice | >= 22.07.5-2ubuntu1, < 22.07.5-2ubuntu1.6; >= 23.13.9-2ubuntu6, < 23.13.9-2ubuntu6.1; >= 23.13.9-8ubuntu5, < 23.13.9-8ubuntu5.2; >= 23.13.9-8ubuntu6, < 23.13.9-8ubuntu7 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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