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Fencer Vulns
high 7.1

CVE-2025-54882 json

Himmelblau's Kerberos credential cache collection is world readable

published 2025-08-07 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-23898

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

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.

Patch / fix

  • himmelblau-idm himmelblau 0.9.22, 1.2.0
  • himmelblau SLE Module for Basesystem 15 SP7 2.3.9+git0.a9fd29b-150700.3.15.1
  • himmelblau SLES for SAP applications 16.0, SLES 16.0 2.3.8+git0.dec3693-160000.1.1

suse advisories SUSE-SU-2026:1361-1SUSE-FU-2026:20990-1

  • himmelblau openSUSE Leap 16.0 2.3.8+git0.dec3693-160000.1.1
  • himmelblau openSUSE Tumbleweed 1.2.0+git.0.6befefc-1.1

opensuse advisories openSUSE-FU-2026:20453-1openSUSE-SU-2025:15425-1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
15 mo ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-phfx-rjfw-wj83 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

  • himmelblau-idm himmelblau

Classification

Weakness
  • CWE-522 Insufficiently Protected Credentials

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.