Description

Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. Prior to 3.1.0 and 2.3.8, the himmelblaud-tasks daemon, running as root, writes Kerberos cache files under /tmp/krb5cc_<uid> without symlink protections. Since commit 87a51ee, PrivateTmp is explicitly removed from the tasks daemon's systemd hardening, exposing it to the host /tmp. A local user can exploit this via symlink attacks to chown or overwrite arbitrary files, achieving local privilege escalation. This vulnerability is fixed in 3.1.0 and 2.3.8.

INFO

Published Date :

2026-03-11T19:47:05.935Z

Last Modified :

2026-03-11T20:07:29.194Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-31979 vulnerability.

Vendors Products
Himmelblau-idm
  • Himmelblau
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-31979.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact