CVE-2026-61898

accountsservice: accountsservice: Arbitrary code execution via shell injection

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Severity

Important

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · August 20, 2026

Updated · August 24, 2026

Description

A flaw was found in accountsservice. A local attacker can exploit this by injecting arbitrary shell commands into the user-controlled LANGUAGE entry in the ~/.pam_environment file. The Ubuntu-specific language helper scripts process this input unescaped, leading to arbitrary code execution with root privileges via the SetLanguage D-Bus method.

Statement

This Important vulnerability in accountsservice is specific to Ubuntu's language helper scripts. Red Hat products do not utilize these particular scripts, therefore, this flaw does not affect Red Hat Enterprise Linux or its supported derivatives.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')