CVE-2026-31979
8.8 · HIGHOverview
CVE-2026-31979 is a high-severity vulnerability affecting himmelblau-idm himmelblau. It was published on March 11, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from himmelblau-idm. Update himmelblau to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| himmelblau-idm | himmelblau | >= 1.0.0, < 2.3.8 | Affected |
Frequently Asked Questions
What is CVE-2026-31979?
CVE-2026-31979 is a high-severity vulnerability affecting himmelblau-idm himmelblau. It was published on March 11, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-31979?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-31979?
Check the references section for vendor advisories and patches from himmelblau-idm. Update himmelblau to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-31979?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-31979 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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