PT-2026-29576 · Himmelblau Idm · Himmelblau

Published 2026-04-01 · Updated 2026-04-01 · CVE-2026-34397

NVD

CVSS v3.1

6.3

Medium

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. From versions 2.0.0-alpha to before 2.3.9 and 3.0.0-alpha to before 3.1.1, there is a conditional local privilege escalation vulnerability in an edge-case naming collision. Only authenticated himmelblau users whose mapped CN/short name exactly matches a privileged local group name (e.g., "sudo", "wheel", "docker", "adm") can cause the NSS module to resolve that group name to their fake primary group. If the system uses NSS results for group-based authorization decisions (sudo, polkit, etc.), this can grant the attacker the privileges of that group. This issue has been patched in versions 2.3.9 and 3.1.1.

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2026-34397

Affected Products

Himmelblau

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-34397 · Security Note
• https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-v7xx-7mqc-g835 · Note
• https://github.com/himmelblau-idm/himmelblau/releases/tag/3.1.1 · Note
• https://github.com/himmelblau-idm/himmelblau/releases/tag/2.3.9 · Note