GHSA-r934-w73g-v4p8: Duplicate Advisory Keycloak Hostname Verification Vulnerability

HIGH
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CVSS 8.2
CWE-297
Published
Advisory Summary

GHSA-r934-w73g-v4p8 is a HIGH (CVSS 8.2) keycloak hostname verification vulnerability (CWE-297: Improper Validation of Certificate with Host Mismatch) affecting Duplicate Advisory libraries in the Maven ecosystem. The issue involves keycloak hostname verification. Remediation is available by upgrading affected packages to version 26.2.2.

GHSA-r934-w73g-v4p8 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-r934-w73g-v4p8
Severity HIGH
CVSS v3.1 Base Score 8.2
CWE Classification CWE-297: Improper Validation of Certificate with Host Mismatch
Affected Product Duplicate Advisory
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.2

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:N/S:U/C:H/I:L/A:N).

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

How to Fix GHSA-r934-w73g-v4p8

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-r934-w73g-v4p8, 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-297: Improper Validation of Certificate with Host Mismatch, where the product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host. 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-hw58-3793-42gg. This link is maintained to preserve external references. # Original Description A flaw was found in Keycloak. By setting a verification policy to 'ALL', the trust store certificate verification is skipped, which is unintended.

GHSA-r934-w73g-v4p8 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-r934-w73g-v4p8 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-3501
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
access.redhat.com/errata/rhsa-2025:86... WEB
https://access.redhat.com/errata/RHSA-2025:8672
access.redhat.com/errata/rhsa-2025:86... WEB
https://access.redhat.com/errata/RHSA-2025:8690
Duplicate Advisory Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2025-3501
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2358834
Duplicate Advisory Source Repository REPOSITORY
https://github.com/keycloak/keycloak

Frequently Asked Questions

What is GHSA-r934-w73g-v4p8?
GHSA-r934-w73g-v4p8 is a security vulnerability in Duplicate Advisory involving Keycloak hostname verification under CWE-297: Improper Validation of Certificate with Host Mismatch.
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-r934-w73g-v4p8?
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-r934-w73g-v4p8?
GHSA-r934-w73g-v4p8 has a CVSS v3.1 base score of 8.2 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
What CWE is associated with GHSA-r934-w73g-v4p8?
GHSA-r934-w73g-v4p8 is classified under CWE-297: Improper Validation of Certificate with Host Mismatch (The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host.).
How can I check Maven dependencies for GHSA-r934-w73g-v4p8?
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-r934-w73g-v4p8",
  "modified" : "2025-06-09T15:31:36Z",
  "published" : "2025-04-29T21:31:56Z",
  "withdrawn" : "2025-04-30T17:24:10Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Keycloak hostname verification",
  "details" : "# Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-hw58-3793-42gg. This link is maintained to preserve external references.\n\n# Original Description\nA flaw was found in Keycloak. By setting a verification policy to 'ALL', the trust store certificate verification is skipped, which is unintended.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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-2025-3501"
  }, {
    "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/errata/RHSA-2025:8672"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:8690"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-3501"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2358834"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/keycloak/keycloak"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-297" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-30T17:24:10Z",
    "nvd_published_at" : "2025-04-29T21:15:51Z"
  }
}