Vulnerabilities in pkg:maven/org.keycloak/keycloak-quarkus-dist

PACKAGE
Advisory Identifier: GHSA-q8hq-4h99-fj7x
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Advisory Summary

CVE-2025-11419 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Keycloak quarkus dist libraries in the Maven ecosystem. The issue involves keycloak tls client-initiated renegotiation denial of service. Remediation is available by upgrading affected packages to version 26.0.16, 26.2.10, 26.4.1.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/org.keycloak/keycloak-quarkus-dist

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/org.keycloak/keycloak-quarkus-dist. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-q8hq-4h99-fj7x CVE-2025-11419 HIGH Keycloak TLS Client-Initiated Renegotiation Denial of Service
GHSA-j4vq-q93m-4683 CVE-2025-11538 MODERATE Keycloak has debug default bind address

CVE-2025-11419 at a Glance

CVE Identifier CVE-2025-11419
GHSA Identifier GHSA-q8hq-4h99-fj7x
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Keycloak quarkus dist
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/I:N/A:H).

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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2025-11419

To remediate this vulnerability, upgrade all affected Keycloak quarkus dist 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-dist fixed: 26.0.16 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-quarkus-dist</artifactId>
    <version>26.0.16</version>
</dependency>
org.keycloak:keycloak-quarkus-dist fixed: 26.2.10 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-quarkus-dist</artifactId>
    <version>26.2.10</version>
</dependency>
org.keycloak:keycloak-quarkus-dist fixed: 26.4.1 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-quarkus-dist</artifactId>
    <version>26.4.1</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 CVE-2025-11419, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.keycloak

Analyze the terminal output to locate any version of Keycloak quarkus dist in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 26.0.16), 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-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Keycloak quarkus dist, 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

Keycloak is vulnerable to a Denial of Service (DoS) attack due to the default JDK setting that permits Client-Initiated Renegotiation in TLS 1.2. An unauthenticated remote attacker can repeatedly initiate TLS renegotiation requests to exhaust server CPU resources, making the service unavailable. Immediate mitigation is available by setting the `-Djdk.tls.rejectClientInitiatedRenegotiation=true` Java system property in the Keycloak startup configuration.

CVE-2025-11419 Affected Keycloak quarkus dist Versions

3 component(s)
Fixed Versions:
26.0.1626.2.1026.4.1
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-quarkus-dist
maven/org.keycloak/keycloak-quarkus-dist
Maven
< 26.0.16
26.0.16
org.keycloak:keycloak-quarkus-dist
maven/org.keycloak/keycloak-quarkus-dist
Maven
≥ 26.1.0
< 26.2.10
26.2.10
org.keycloak:keycloak-quarkus-dist
maven/org.keycloak/keycloak-quarkus-dist
Maven
≥ 26.3.0
< 26.4.1
26.4.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/keycloak/keycloak/security/advisories/GHSA-q8hq-4h99-fj7x
NVD — CVE-2025-11419 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-11419
Keycloak quarkus dist Source Repository REPOSITORY
https://github.com/keycloak/keycloak/issues/43020
access.redhat.com/errata/rhsa-2025:18... WEB
https://access.redhat.com/errata/RHSA-2025:18254
access.redhat.com/errata/rhsa-2025:18... WEB
https://access.redhat.com/errata/RHSA-2025:18255
access.redhat.com/errata/rhsa-2025:18... WEB
https://access.redhat.com/errata/RHSA-2025:18889
access.redhat.com/errata/rhsa-2025:18... WEB
https://access.redhat.com/errata/RHSA-2025:18890
Keycloak quarkus dist Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2025-11419
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2402142
Keycloak quarkus dist Source Repository REPOSITORY
https://github.com/keycloak/keycloak
Keycloak quarkus dist Source Repository REPOSITORY
https://github.com/keycloak/keycloak/discussions/25209

Frequently Asked Questions

What is CVE-2025-11419?
CVE-2025-11419 is a security vulnerability in Keycloak quarkus dist involving Keycloak TLS Client-Initiated Renegotiation Denial of Service under CWE-400: Uncontrolled Resource Consumption.
Which Keycloak quarkus dist versions are affected?
Affected versions include releases prior to 26.0.16, 26.2.10, 26.4.1 across affected packages: org.keycloak:keycloak-quarkus-dist.
What version fixes CVE-2025-11419?
Upgrading to 26.0.16, 26.2.10, 26.4.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is keycloak-quarkus-dist affected?
Yes, org.keycloak:keycloak-quarkus-dist is affected in releases prior to 26.0.16, 26.2.10, 26.4.1. Upgrade your dependency to 26.0.16, 26.2.10, 26.4.1 or later.
What is the CVSS score of CVE-2025-11419?
CVE-2025-11419 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2025-11419?
CVE-2025-11419 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check Maven dependencies for CVE-2025-11419?
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-q8hq-4h99-fj7x",
  "modified" : "2026-04-24T21:02:53Z",
  "published" : "2025-10-27T20:46:54Z",
  "aliases" : [ "CVE-2025-11419" ],
  "summary" : "Keycloak TLS Client-Initiated Renegotiation Denial of Service",
  "details" : "Keycloak is vulnerable to a Denial of Service (DoS) attack due to the default JDK setting that permits Client-Initiated Renegotiation in TLS 1.2. An unauthenticated remote attacker can repeatedly initiate TLS renegotiation requests to exhaust server CPU resources, making the service unavailable. Immediate mitigation is available by setting the `-Djdk.tls.rejectClientInitiatedRenegotiation=true` Java system property in the Keycloak startup configuration.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-quarkus-dist"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "26.0.16"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-quarkus-dist"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "26.1.0"
      }, {
        "fixed" : "26.2.10"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-quarkus-dist"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "26.3.0"
      }, {
        "fixed" : "26.4.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/security/advisories/GHSA-q8hq-4h99-fj7x"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-11419"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/issues/43020"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:18254"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:18255"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:18889"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:18890"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-11419"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2402142"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/keycloak/keycloak"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/discussions/25209"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-770" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-27T20:46:54Z",
    "nvd_published_at" : "2025-12-23T21:15:46Z"
  }
}