CVE-2025-24034: low-severity vulnerability in himmelblau-idm himmelblau
Himmelblau leaks credentials in the debug log
Published · Updated
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8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.2epss 0.2%
Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. Starting in version 0.7.0 and prior to versions 0.7.15 and 0.8.3, Himmelblau is vulnerable to leaking credentials in debug logs. When debug logging is enabled, user access tokens are inadvertently logged, potentially exposing sensitive authentication data. Similarly, Kerberos Ticket-Granting Tickets (TGTs) are logged when debug logging is enabled. Both issues pose a risk of exposing sensitive credentials, particularly in environments where debug logging is enabled. Himmelblau versions 0.7.15 and 0.8.3 contain a patch that fixes both issues. Some workarounds are available for users who are unable to upgrade. For the **logon compliance script issue**, disable the `logon_script` option in `/etc/himmelblau/himmelblau.conf`, and avoid using the `-d` flag when starting the `himmelblaud` daemon. For the Kerberos CCache issue, one may disable debug logging globally by setting the `debug` option in `/etc/himmelblau/himmelblau.conf` to `false` and avoiding the `-d` parameter when starting `himmelblaud`.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
Affected products
himmelblau-idm · himmelblauRelated CVEs — himmelblau-idm himmelblau
In the same product, most dangerous first.
CVE-2026-31957CRITICALHimmelblau unset domain configuration can allow any-tenant authentication at first login for remote deploymentsEPSS 0.5%CVE-2025-49012MEDIUMHimmelblau's Name-Based Group Matching in `pam_allow_groups` Leads to Potential Security BypassEPSS 0.4%CVE-2026-45108HIGHHimmelblau: Authentication Bypass via Cross-User Local Session Impersonation in Device Authorization Grant (DAG) FlowEPSS 0.2%CVE-2025-54882HIGHHimmelblau's Kerberos credential cache collection is world readableEPSS 0.2%CVE-2025-53013MEDIUMHimmelblau offline auth permits authentication with invalid Hello PINEPSS 0.2%CVE-2026-31979HIGHhimmelblaud-tasks: local privilege escalation via /tmp symlink attack on Kerberos ccacheEPSS 0.2%
References
https://github.com/himmelblau-idm/himmelblau/commit/1216804f15ce5dc74bb5da48b5508c41d2ece8fahttps://github.com/himmelblau-idm/himmelblau/releases/tag/0.7.15https://github.com/himmelblau-idm/himmelblau/releases/tag/0.8.3https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-p989-2f5w-9cf6https://manpages.opensuse.org/Tumbleweed/himmelblau/himmelblau.conf.5.en.htmlhttps://manpages.opensuse.org/Tumbleweed/himmelblau/himmelblaud.8.en.html