CVE-2025-3910

Org.keycloak.authentication: two factor authentication bypass

State: Published
Severity: 5.4 Medium
Published: Apr 29, 2025
Updated: Sep 21, 2026
Reserved: Apr 23, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N	redhat

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
keycloak	25.0.0 to before 25.Affected 26.0.0 to before 26.0.11Affected 26.1.0 to before 26.1.Unknown 26.2.0 to before 26.2.2Affected
Red Hat Build of KeycloakRed Hat
Red Hat build of Keycloak 26.0Red Hat	26.0.11-2 and laterNot affected
Red Hat build of Keycloak 26.0Red Hat	26.0-12 and laterNot affected
Red Hat build of Keycloak 26.0Red Hat	26.0-13 and laterNot affected

References

RHSA-2025:4335vendor-advisory
RHSA-2025:4336vendor-advisory
https://access.redhat.com/security/cve/CVE-2025-3910vdb-entry
RHBZ#2361923issue-tracking
https://github.com/keycloak/keycloak/issues/39349

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