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Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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Tue, 22 Sep 2026 12:15:00 +0000
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threat_severity
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threat_severity
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Tue, 22 Sep 2026 08:00:00 +0000
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| Description | A flaw was found in the Kerberos federation provider of Keycloak, an open-source identity and access management solution. When Kerberos password authentication is used without SPNEGO, the system fails to verify the identity of the Key Distribution Center (KDC) by requesting a server ticket. This allows an attacker on the same network to spoof the KDC and bypass the authentication process, potentially gaining unauthorized access to user accounts. | |
| Title | Keycloak-services: keycloak-services: potential kdc spoofing bypass when kerberos password authentication is enabled | |
| First Time appeared |
Redhat
Redhat build Keycloak Redhat red Hat Single Sign On |
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| Weaknesses | CWE-347 | |
| CPEs | cpe:/a:redhat:build_keycloak: cpe:/a:redhat:red_hat_single_sign_on:7 |
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| Vendors & Products |
Redhat
Redhat build Keycloak Redhat red Hat Single Sign On |
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cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-22T14:36:35.259Z
Reserved: 2026-09-22T06:42:35.840Z
Link: CVE-2026-95503
No data.
Status : Received
Published: 2026-09-22T08:16:43.200
Modified: 2026-09-22T15:17:25.670
Link: CVE-2026-95503
OpenCVE Enrichment
Updated: 2026-09-22T10:45:08Z
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CWE-347
Improper Verification of Cryptographic Signature