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CVE-2025-3910

Org.keycloak.authentication: two factor authentication bypass

MEDIUM
5.4
CVSS Score
Published: April 29, 2025 at 08:46 PM UTC
Updated: September 21, 2026 at 06:17 AM UTC
1 product affected across 1 vendorBuild of Keycloak

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Build of Keycloak· Red Hatcontainer
95%
26.0 ≤ v < 26.0.11
Vendor states this is fixed in 26.0 (unaffected)
Vendor states this is fixed in 26.0-12 (unaffected)
Vendor states this is fixed in 26.0-13 (unaffected)
Affected range stops below 26.0.11, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 26.0.11-2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
https://access.redhat.com/errata/RHSA-2025:4335
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
https://access.redhat.com/errata/RHSA-2025:4336
VDB Entryx_refsource_REDHATVendor Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2025-3910
Issue Trackingx_refsource_REDHATVendor Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2361923
Issue Tracking
Source: [email protected]
https://github.com/keycloak/keycloak/issues/39349

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMredhat
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-287

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