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2 vulnerabilities found for accountsservice by Canonical

CVE-2026-61898 (GCVE-0-2026-61898)
Vulnerability from cvelistv5
Published
2026-08-20 14:32
Modified
2026-08-26 19:50
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Summary
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
Impacted products
Vendor Product Version
Canonical accountsservice Version: 22.07.5-2ubuntu1
Version: 23.13.9-2ubuntu6
Version: 23.13.9-8ubuntu5
Version: 23.13.9-8ubuntu6
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CVE-2026-61897 (GCVE-0-2026-61897)
Vulnerability from cvelistv5
Published
2026-08-20 14:32
Modified
2026-08-26 19:50
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-273 - Improper Check for Dropped Privileges
Summary
An Ubuntu-specific patch to AccountsService before 23.13.9-8ubuntu7 only partially drops privileges before launching language helper scripts. It changes the effective UID/GID to the target user but leaves the real UID as 0 (root). A shell spawned by a helper script inherits ruid=0 and may reset its effective UID to root, enabling local privilege escalation.
References
Impacted products
Vendor Product Version
Canonical accountsservice Version: 22.07.5-2ubuntu1
Version: 23.13.9-2ubuntu6
Version: 23.13.9-8ubuntu5
Version: 23.13.9-8ubuntu6
 Create a notification for this product.
Show details on NVD website

To clipboard 

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                "timestamp": "2026-08-26T19:43:37.600246Z",
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      }
    ],
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            "Ubuntu 24.04 LTS",
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