CVE-2026-54552

CVE-2026-54552 · sh _uid does not drop supplementary groups (incomplete privilege drop)

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

sh provides Python process launching. Prior to 2.2.4, the _uid option in sh.py performs an incomplete privilege drop on Linux and Unix-like systems. When sh runs from an elevated process and launches a command with _uid set to an unprivileged user, the child changes its UID but can retain the parent process's supplementary groups because the privilege-drop sequence does not fully establish the target user's UID, primary GID, and supplementary groups. The child can therefore retain access to files or resources granted to privileged groups such as root, docker, disk, shadow, or sudo, violating the expected _uid privilege boundary. This issue is fixed in version 2.2.4.

CVSS 7.9 · Alta · EPSS 0,2% · Corrección disponible

Publicación

2026-08-18T17:37:40.430Z

Actualización

2026-08-18T18:44:38.505Z

Pila tecnológica: system · python

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