CVE-2025-54882
Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. In versions 0.8.0 through 0.9.21 and 1.0.0-beta through 1.1.0, Himmelblau stores the cloud TGT received during logon in the Kerberos credential cache. The created credential cache collection and received credentials are stored as world readable. This is fixed in versions 0.9.22 and 1.2.0. To work around this issue, remove all read access to Himmelblau caches for all users except for owners.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.21% probability · 12th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-522
- Affected
- himmelblau-idm/himmelblau
- Source
- security-advisories@github.com
References
- https://github.com/himmelblau-idm/himmelblau/commit/b562053df3dffb1dd9ab3d09af986886773be2adPatch
- https://github.com/himmelblau-idm/himmelblau/commit/faae58b0384aca8b21b4be5f1c507412eec3778aPatch
- https://github.com/himmelblau-idm/himmelblau/releases/tag/0.9.22Release Notes
- https://github.com/himmelblau-idm/himmelblau/releases/tag/1.2.0Release Notes
- https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-phfx-rjfw-wj83Exploit, Vendor Advisory
- https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-phfx-rjfw-wj83Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.