GHSA-c6cm-5gc7-c3f4: Duplicate Advisory Keycloak Allows Access To Admin Vulnerability

LOW
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CVSS 3.7
CWE-427
Published
Advisory Summary

GHSA-c6cm-5gc7-c3f4 is a LOW (CVSS 3.7) keycloak allows access to admin vulnerability (CWE-427: Uncontrolled Search Path Element) affecting Duplicate Advisory libraries in the Maven ecosystem. The issue involves keycloak allows access to admin path through flaw. Remediation is available in the latest vendor maintenance releases.

GHSA-c6cm-5gc7-c3f4 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-c6cm-5gc7-c3f4
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-427: Uncontrolled Search Path Element
Affected Product Duplicate Advisory
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.7

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

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

How to Fix GHSA-c6cm-5gc7-c3f4

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-quarkus-server fixed: Latest secure release 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-quarkus-server</artifactId>
    <version>Latest secure release</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-c6cm-5gc7-c3f4, 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 the patched release), 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-427: Uncontrolled Search Path Element, where the product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. 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-j4vq-q93m-4683. This link is maintained to preserve external references. ### Original Description A flaw was found in Keycloak. The Keycloak guides recommend to not expose /admin path to the outside in case the installation is using a proxy. The issue occurs at least via ha-proxy, as it can be tricked to using relative/non-normalized paths to access the /admin application path relative to /realms which is expected to be exposed.

GHSA-c6cm-5gc7-c3f4 Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-quarkus-server
maven/org.keycloak/keycloak-quarkus-server
Maven
≤ 26.4.2

References

NVD — GHSA-c6cm-5gc7-c3f4 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-10939
Duplicate Advisory Source Repository REPOSITORY
https://github.com/keycloak/keycloak/issues/43763
Duplicate Advisory Source Repository REPOSITORY
https://github.com/keycloak/keycloak/pull/43765
access.redhat.com/errata/rhsa-2025:21... WEB
https://access.redhat.com/errata/RHSA-2025:21370
access.redhat.com/errata/rhsa-2025:21... WEB
https://access.redhat.com/errata/RHSA-2025:21371
Duplicate Advisory Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2025-10939
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2398025
Duplicate Advisory Source Repository REPOSITORY
https://github.com/keycloak/keycloak

Frequently Asked Questions

What is GHSA-c6cm-5gc7-c3f4?
GHSA-c6cm-5gc7-c3f4 is a security vulnerability in Duplicate Advisory involving Keycloak allows access to admin path through flaw under CWE-427: Uncontrolled Search Path Element.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: org.keycloak:keycloak-quarkus-server.
What version fixes GHSA-c6cm-5gc7-c3f4?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is keycloak-quarkus-server affected?
Yes, org.keycloak:keycloak-quarkus-server is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-c6cm-5gc7-c3f4?
GHSA-c6cm-5gc7-c3f4 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with GHSA-c6cm-5gc7-c3f4?
GHSA-c6cm-5gc7-c3f4 is classified under CWE-427: Uncontrolled Search Path Element (The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.).
How can I check Maven dependencies for GHSA-c6cm-5gc7-c3f4?
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-c6cm-5gc7-c3f4",
  "modified" : "2025-12-20T05:38:46Z",
  "published" : "2025-10-28T06:31:05Z",
  "withdrawn" : "2025-12-02T01:21:25Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory:  Keycloak allows access to admin path through flaw",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-j4vq-q93m-4683. This link is maintained to preserve external references.\n\n### Original Description\nA flaw was found in Keycloak. The Keycloak guides recommend to not expose /admin path to the outside in case the installation is using a proxy. The issue occurs at least via ha-proxy, as it can be tricked to using relative/non-normalized paths to access the /admin application path relative to /realms which is expected to be exposed.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-quarkus-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "26.4.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-10939"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/issues/43763"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/pull/43765"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:21370"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:21371"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-10939"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2398025"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/keycloak/keycloak"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-427" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-29T15:35:07Z",
    "nvd_published_at" : "2025-10-28T04:16:15Z"
  }
}