CVE-2024-10270: Keycloak services Keycloak-services Has Inefficient Regular Expression Vulnerability

HIGH
Advisory Identifier: GHSA-wq8x-cg39-8mrr
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CVSS 6.5
CWE-1333
Published
Advisory Summary

CVE-2024-10270 is a HIGH (CVSS 6.5) keycloak-services has inefficient regular expression vulnerability (CWE-1333: Inefficient Regular Expression Complexity) affecting Keycloak services libraries in the Maven ecosystem. The issue involves keycloak-services has inefficient regular expression complexity. Remediation is available by upgrading affected packages to version 24.0.9, 26.0.6.

CVE-2024-10270 at a Glance

CVE Identifier CVE-2024-10270
GHSA Identifier GHSA-wq8x-cg39-8mrr
Severity HIGH
CVSS v3.1 Base Score 6.5
CWE Classification CWE-1333: Inefficient Regular Expression Complexity
Affected Product Keycloak services
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2024-10270

To remediate this vulnerability, upgrade all affected Keycloak services 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: 24.0.9 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-services</artifactId>
    <version>24.0.9</version>
</dependency>
org.keycloak:keycloak-services fixed: 26.0.6 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-services</artifactId>
    <version>26.0.6</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-2024-10270, 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 services in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 24.0.9), 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-1333: Inefficient Regular Expression Complexity, where the product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential. In Keycloak services, 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

A vulnerability was found in the Keycloak-services package. If untrusted data is passed to the SearchQueryUtils method, it could lead to a denial of service (DoS) scenario by exhausting system resources due to a Regex complexity.

CVE-2024-10270 Affected Keycloak services Versions

2 component(s)
Fixed Versions:
24.0.926.0.6
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-services
maven/org.keycloak/keycloak-services
Maven
< 24.0.9
24.0.9
org.keycloak:keycloak-services
maven/org.keycloak/keycloak-services
Maven
≥ 25.0.0
< 26.0.6
26.0.6

References

GitHub Advisory / Wiki ADVISORY
https://github.com/keycloak/keycloak/security/advisories/GHSA-wq8x-cg39-8mrr
NVD — CVE-2024-10270 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-10270
Security Fix Commit FIX COMMIT
https://github.com/keycloak/keycloak/commit/5d6c91f3309db468b0fe4834e88c3d25649f73e4
access.redhat.com/errata/rhsa-2024:10... WEB
https://access.redhat.com/errata/RHSA-2024:10175
access.redhat.com/errata/rhsa-2024:10... WEB
https://access.redhat.com/errata/RHSA-2024:10176
access.redhat.com/errata/rhsa-2024:10... WEB
https://access.redhat.com/errata/RHSA-2024:10177
access.redhat.com/errata/rhsa-2024:10... WEB
https://access.redhat.com/errata/RHSA-2024:10178
Keycloak services Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2024-10270
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2321214
Keycloak services Source Repository REPOSITORY
https://github.com/keycloak/keycloak

Frequently Asked Questions

What is CVE-2024-10270?
CVE-2024-10270 is a security vulnerability in Keycloak services involving keycloak-services has Inefficient Regular Expression Complexity under CWE-1333: Inefficient Regular Expression Complexity.
Which Keycloak services versions are affected?
Affected versions include releases prior to 24.0.9, 26.0.6 across affected packages: org.keycloak:keycloak-services.
What version fixes CVE-2024-10270?
Upgrading to 24.0.9, 26.0.6 (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 24.0.9, 26.0.6. Upgrade your dependency to 24.0.9, 26.0.6 or later.
What is the CVSS score of CVE-2024-10270?
CVE-2024-10270 has a CVSS v3.1 base score of 6.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2024-10270?
CVE-2024-10270 is classified under CWE-1333: Inefficient Regular Expression Complexity (The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.).
How can I check Maven dependencies for CVE-2024-10270?
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-wq8x-cg39-8mrr",
  "modified" : "2024-11-25T18:32:13Z",
  "published" : "2024-11-25T18:32:12Z",
  "aliases" : [ "CVE-2024-10270" ],
  "summary" : "org.keycloak:keycloak-services has Inefficient Regular Expression Complexity",
  "details" : "A vulnerability was found in the Keycloak-services package. If untrusted data is passed to the SearchQueryUtils method, it could lead to a denial of service (DoS) scenario by exhausting system resources due to a Regex complexity.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-services"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "24.0.9"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-services"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "25.0.0"
      }, {
        "fixed" : "26.0.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/security/advisories/GHSA-wq8x-cg39-8mrr"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-10270"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/commit/5d6c91f3309db468b0fe4834e88c3d25649f73e4"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2024:10175"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2024:10176"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2024:10177"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2024:10178"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2024-10270"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2321214"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/keycloak/keycloak"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1333" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-11-25T18:32:12Z",
    "nvd_published_at" : null
  }
}