Upstream information

CVE-2026-31979 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (GitHub)
Base Score 8.8
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1259548 [NEW]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 himmelblau Not affected
SUSE Linux Enterprise High Performance Computing 15 SP7 himmelblau Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 himmelblau Not affected
SUSE Linux Enterprise Server 15 SP7 himmelblau Not affected
SUSE Linux Enterprise Server 16.0 himmelblau Not affected
SUSE Linux Enterprise Server 16.1 himmelblau Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 himmelblau Not affected
SUSE Linux Enterprise Server for SAP applications 16.0 himmelblau Not affected
SUSE Linux Enterprise Server for SAP applications 16.1 himmelblau Not affected
openSUSE Leap 15.6 himmelblau Not affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS himmelblau Not affected
SUSE Linux Enterprise Server 15 SP5-LTSS himmelblau Not affected
SUSE Linux Enterprise Server 15 SP6-LTSS himmelblau Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 himmelblau Not affected
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS himmelblau Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 himmelblau Not affected
Products at an unknown state of their lifecycle.
SLES-CHOST-BYOS-Azure himmelblau Not affected
SUSE Linux Enterprise Server 16 himmelblau Not affected
SUSE Linux Enterprise Server for SAP applications 16 himmelblau Not affected


SUSE Timeline for this CVE

CVE page created: Wed Mar 11 22:01:09 2026
CVE page last modified: Thu Mar 12 17:46:49 2026