GHSA-fx44-2wx5-5fvp: Duplicate Advisory Authentication Bypass Vulnerability

MODERATE
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CVSS 5.4
CWE-287
Published
Advisory Summary

GHSA-fx44-2wx5-5fvp is a MODERATE (CVSS 5.4) authentication bypass vulnerability (CWE-287: Improper Authentication) affecting Duplicate Advisory libraries in the Maven ecosystem. The issue involves keycloak vulnerable to two factor authentication bypass. Remediation is available by upgrading affected packages to version 26.2.2.

GHSA-fx44-2wx5-5fvp at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-fx44-2wx5-5fvp
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-287: Improper Authentication
Affected Product Duplicate Advisory
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix GHSA-fx44-2wx5-5fvp

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.keycloak:keycloak-services fixed: 26.2.2 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-services</artifactId>
    <version>26.2.2</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.keycloak

How to Check if You Are Affected

To determine whether your Java application is affected by GHSA-fx44-2wx5-5fvp, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.keycloak

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 26.2.2), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.keycloak command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

# Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-5jfq-x6xp-7rw2. This link is maintained to preserve external references. # Original 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.

GHSA-fx44-2wx5-5fvp Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
26.2.2
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-services
maven/org.keycloak/keycloak-services
Maven
< 26.2.2
26.2.2

References

NVD — GHSA-fx44-2wx5-5fvp NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-3910
access.redhat.com/errata/rhsa-2025:43... WEB
https://access.redhat.com/errata/RHSA-2025:4335
access.redhat.com/errata/rhsa-2025:43... WEB
https://access.redhat.com/errata/RHSA-2025:4336
Duplicate Advisory Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2025-3910
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2361923

Frequently Asked Questions

What is GHSA-fx44-2wx5-5fvp?
GHSA-fx44-2wx5-5fvp is a security vulnerability in Duplicate Advisory involving Keycloak vulnerable to two factor authentication bypass under CWE-287: Improper Authentication.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 26.2.2 across affected packages: org.keycloak:keycloak-services.
What version fixes GHSA-fx44-2wx5-5fvp?
Upgrading to 26.2.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is keycloak-services affected?
Yes, org.keycloak:keycloak-services is affected in releases prior to 26.2.2. Upgrade your dependency to 26.2.2 or later.
What is the CVSS score of GHSA-fx44-2wx5-5fvp?
GHSA-fx44-2wx5-5fvp has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
What CWE is associated with GHSA-fx44-2wx5-5fvp?
GHSA-fx44-2wx5-5fvp is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Maven dependencies for GHSA-fx44-2wx5-5fvp?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.keycloak'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fx44-2wx5-5fvp",
  "modified" : "2025-04-30T17:25:51Z",
  "published" : "2025-04-29T21:31:56Z",
  "withdrawn" : "2025-04-30T17:25:51Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Keycloak vulnerable to two factor authentication bypass",
  "details" : "# Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-5jfq-x6xp-7rw2. This link is maintained to preserve external references.\n\n# Original Description\nA 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-services"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "26.2.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-3910"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:4335"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:4336"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-3910"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2361923"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-30T17:25:51Z",
    "nvd_published_at" : "2025-04-29T21:15:51Z"
  }
}