CVE-2025-3910

Org.keycloak.authentication: two factor authentication bypass

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.

Remediation

Workaround:

  • No current mitigations are available for this vulnerability.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat Build of Keycloak
Affected: Red Hat Red Hat build of Keycloak 26.0
Affected: Red Hat Red Hat build of Keycloak 26.0
Affected: Red Hat Red Hat build of Keycloak 26.0
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2025:4335 vendor advisory
https://access.redhat.com/errata/RHSA-2025:4336 vendor advisory
https://access.redhat.com/security/cve/CVE-2025-3910 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2361923 issue tracking

Frequently Asked Questions

What is the severity of CVE-2025-3910?
CVE-2025-3910 has been scored as a medium severity vulnerability.
How to fix CVE-2025-3910?
As a workaround for remediating CVE-2025-3910: No current mitigations are available for this vulnerability.
Is CVE-2025-3910 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-3910 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-3910?
CVE-2025-3910 affects Red Hat Red Hat Build of Keycloak, Red Hat Red Hat build of Keycloak 26.0, Red Hat Red Hat build of Keycloak 26.0, Red Hat Red Hat build of Keycloak 26.0.
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