Medium [CVE-2025-3910] Org.keycloak.authentication: two factor authentication bypass
This medium-severity Red Hat Linux advisory covers CVE-2025-3910 affecting Red Hat build of Keycloak 26.0.
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Summary
A flaw was found in Keycloak. The org.keycloak.authorization package may be vulnerable to circumventing required actions, allowing users to circumvent requirements such as setting up two-factor authentication.
Red Hat severity: Moderate — CVSS 5.4 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N). Weakness: CWE-287.
Affected Red Hat products: Red Hat Build of Keycloak; Red Hat build of Keycloak 26.0. Red Hat fixing advisory: RHSA-2025:4336, RHSA-2025:4335.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 23 days ago·verify at source
- org.keycloak.authentication
- rhbk/keycloak-operator-bundle:26.0.11-2
- rhbk/keycloak-rhel9:26.0-12
- rhbk/keycloak-rhel9-operator:26.0-13
- RHSA-2025:4336
- RHSA-2025:4335
Official advisory · high-confidence parse· fetched 23 days ago·verify at source
Mitigation checklist
- No current mitigations are available for this vulnerability.
Official advisory · high-confidence parse· fetched 23 days ago·verify at source
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