CVE-2026-61898

7.8 Élevée

Publiée le 20/08/2026 à 17:17 · Modifiée le 18/10/2026 à 22:10 · En attente d'analyse NVD · Source : security@ubuntu.com

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.

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Produits concernés

Canonical accountsservice

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.8 Élevée	security@ubuntu.com	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`

Faiblesses (CWE)

CWE-78

Références

https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/2157985
https://ubuntu.com/security/CVE-2026-61898

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories