CVE-2026-31979

Published: Mar 11, 2026 Last Modified: Mar 16, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0001
Percentile
0,0th
Updated

EPSS Score Trend (Last 6 Days)

59

Improper Link Resolution Before File Access ('Link Following')

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Other
Potential Impacts:
Read Files Or Directories Modify Files Or Directories Bypass Protection Mechanism Execute Unauthorized Code Or Commands
Applicable Platforms
Operating Systems: Windows, Unix
Likelihood of Exploit: Medium
View CWE Details
Application

Himmelblau by Himmelblau-Idm

Product Information
Vendor Himmelblau-Idm
Product Himmelblau
Version Range Affected
From 3.0.0 (inclusive)
To 3.1.0 (exclusive)
cpe:2.3:a:himmelblau-idm:himmelblau:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Himmelblau by Himmelblau-Idm

Product Information
Vendor Himmelblau-Idm
Product Himmelblau
Version Range Affected
From 1.0.0 (inclusive)
To 2.3.8 (exclusive)
cpe:2.3:a:himmelblau-idm:himmelblau:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/himmelblau-idm/himmelblau/security/advis…
https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-44wm-q286…