CVE-2026-57288: Active directory Jenkins Active Directory Plugin Has Vulnerability

LOW
Advisory Identifier: GHSA-gx55-p8g7-p3fh
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CVSS 3.7
CWE-90
Published
Advisory Summary

CVE-2026-57288 is a LOW (CVSS 3.7) jenkins active directory plugin has vulnerability (CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')) affecting Active directory libraries in the Maven ecosystem. The issue involves jenkins active directory plugin has an ldap injection vulnerability. Remediation is available by upgrading affected packages to version 2.41.2.

CVE-2026-57288 at a Glance

CVE Identifier CVE-2026-57288
GHSA Identifier GHSA-gx55-p8g7-p3fh
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Affected Product Active directory
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 CVE-2026-57288

To remediate this vulnerability, upgrade all affected Active directory 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.jenkins-ci.plugins:active-directory fixed: 2.41.2 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>active-directory</artifactId>
    <version>2.41.2</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.jenkins-ci.plugins

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-57288, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jenkins-ci.plugins

Analyze the terminal output to locate any version of Active directory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.41.2), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.plugins 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-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection'), where the product constructs all or part of an ldap query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended ldap query when it is sent to a downstream component. In Active directory, 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

In Jenkins Active Directory Plugin 2.41.1 and earlier, the Windows native (ADSI) authentication path does not escape the user name before building the LDAP search filter. This allows unauthenticated attackers to inject LDAP wildcard characters into the user name, enabling them to enumerate directory user and group names, and to authenticate as a matching user when they know that user’s password but not their exact user name. Active Directory Plugin 2.41.2 escapes the user name in the Windows native (ADSI) authentication path before building the LDAP search filter.

CVE-2026-57288 Affected Active directory Versions

1 component(s)
Fixed Versions:
2.41.2
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:active-directory
maven/org.jenkins-ci.plugins/active-directory
Maven
< 2.41.2
2.41.2

References

NVD — CVE-2026-57288 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-57288
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/active-directory-plugin/commit/5028dea8e0acc45ff9d6be302d4e1cbc1f9da464
Active directory Source Repository REPOSITORY
https://github.com/jenkinsci/active-directory-plugin
Active directory Release RELEASE
https://github.com/jenkinsci/active-directory-plugin/releases/tag/active-directory-2.41.2
Active directory Security Information SECURITY
https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3651

Frequently Asked Questions

What is CVE-2026-57288?
CVE-2026-57288 is a security vulnerability in Active directory involving Jenkins Active Directory Plugin has an LDAP injection vulnerability under CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection').
Which Active directory versions are affected?
Affected versions include releases prior to 2.41.2 across affected packages: org.jenkins-ci.plugins:active-directory.
What version fixes CVE-2026-57288?
Upgrading to 2.41.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is active-directory affected?
Yes, org.jenkins-ci.plugins:active-directory is affected in releases prior to 2.41.2. Upgrade your dependency to 2.41.2 or later.
What is the CVSS score of CVE-2026-57288?
CVE-2026-57288 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 CVE-2026-57288?
CVE-2026-57288 is classified under CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') (The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.).
How can I check Maven dependencies for CVE-2026-57288?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jenkins-ci.plugins'. 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-gx55-p8g7-p3fh",
  "modified" : "2026-09-25T18:56:15Z",
  "published" : "2026-06-24T15:31:47Z",
  "aliases" : [ "CVE-2026-57288" ],
  "summary" : "Jenkins Active Directory Plugin has an LDAP injection vulnerability",
  "details" : "In Jenkins Active Directory Plugin 2.41.1 and earlier, the Windows native (ADSI) authentication path does not escape the user name before building the LDAP search filter.\n\nThis allows unauthenticated attackers to inject LDAP wildcard characters into the user name, enabling them to enumerate directory user and group names, and to authenticate as a matching user when they know that user’s password but not their exact user name.\n\nActive Directory Plugin 2.41.2 escapes the user name in the Windows native (ADSI) authentication path before building the LDAP search filter.",
  "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.jenkins-ci.plugins:active-directory"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.41.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-57288"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/active-directory-plugin/commit/5028dea8e0acc45ff9d6be302d4e1cbc1f9da464"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/active-directory-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/active-directory-plugin/releases/tag/active-directory-2.41.2"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3651"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-90" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-25T18:56:15Z",
    "nvd_published_at" : "2026-06-24T14:17:35Z"
  }
}