CVE-2026-53442: Jenkins core Jenkins Does Not Encrypt Secrets Vulnerability

MODERATE
Advisory Identifier: GHSA-m6wv-wh8g-64xc
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CVSS 5.3
CWE-311
Published
Advisory Summary

CVE-2026-53442 is a MODERATE (CVSS 5.3) jenkins does not encrypt secrets vulnerability (CWE-311: Missing Encryption of Sensitive Data) affecting Jenkins core libraries in the Maven ecosystem. The issue involves jenkins does not encrypt secrets from post config.xml submissions before storing them in job configurations. Remediation is available by upgrading affected packages to version 2.555.3, 2.568.

CVE-2026-53442 at a Glance

CVE Identifier CVE-2026-53442
GHSA Identifier GHSA-m6wv-wh8g-64xc
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-311: Missing Encryption of Sensitive Data
Affected Product Jenkins core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:L/I:N/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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-53442

To remediate this vulnerability, upgrade all affected Jenkins core 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.main:jenkins-core fixed: 2.555.3 
<dependency>
    <groupId>org.jenkins-ci.main</groupId>
    <artifactId>jenkins-core</artifactId>
    <version>2.555.3</version>
</dependency>
org.jenkins-ci.main:jenkins-core fixed: 2.568 
<dependency>
    <groupId>org.jenkins-ci.main</groupId>
    <artifactId>jenkins-core</artifactId>
    <version>2.568</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.main

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-53442, inspect your build dependencies using the Maven Dependency Plugin:

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

Analyze the terminal output to locate any version of Jenkins core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.555.3), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.main 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-311: Missing Encryption of Sensitive Data, where the product does not encrypt sensitive or critical information before storage or transmission. In Jenkins core, 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

Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not encrypt secrets from POST config.xml submissions before storing them in job configurations unencrypted in job config.xml files on the Jenkins controller where they can be viewed by users with Item/Extended Read permission, or access to the Jenkins controller file system.

CVE-2026-53442 Affected Jenkins core Versions

2 component(s)
Fixed Versions:
2.555.32.568
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.main:jenkins-core
maven/org.jenkins-ci.main/jenkins-core
Maven
< 2.555.3
2.555.3
org.jenkins-ci.main:jenkins-core
maven/org.jenkins-ci.main/jenkins-core
Maven
≥ 2.556
< 2.568
2.568

References

NVD — CVE-2026-53442 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53442
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/jenkins/commit/037c2c30cd26b926ec9df3d1b60e16b80608edb4
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/jenkins/commit/206f0b565f0ce16b5162160ffb96f5dd59002ff7
Jenkins core Source Repository REPOSITORY
https://github.com/jenkinsci/jenkins
Jenkins core Security Information SECURITY
https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3744

Frequently Asked Questions

What is CVE-2026-53442?
CVE-2026-53442 is a security vulnerability in Jenkins core involving Jenkins does not encrypt secrets from POST config.xml submissions before storing them in job configurations under CWE-311: Missing Encryption of Sensitive Data.
Which Jenkins core versions are affected?
Affected versions include releases prior to 2.555.3, 2.568 across affected packages: org.jenkins-ci.main:jenkins-core.
What version fixes CVE-2026-53442?
Upgrading to 2.555.3, 2.568 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jenkins-core affected?
Yes, org.jenkins-ci.main:jenkins-core is affected in releases prior to 2.555.3, 2.568. Upgrade your dependency to 2.555.3, 2.568 or later.
What is the CVSS score of CVE-2026-53442?
CVE-2026-53442 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-53442?
CVE-2026-53442 is classified under CWE-311: Missing Encryption of Sensitive Data (The product does not encrypt sensitive or critical information before storage or transmission.).
How can I check Maven dependencies for CVE-2026-53442?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jenkins-ci.main'. 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-m6wv-wh8g-64xc",
  "modified" : "2026-08-13T20:51:18Z",
  "published" : "2026-06-10T15:31:31Z",
  "aliases" : [ "CVE-2026-53442" ],
  "summary" : "Jenkins does not encrypt secrets from POST config.xml submissions before storing them in job configurations",
  "details" : "Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not encrypt secrets from POST config.xml submissions before storing them in job configurations unencrypted in job config.xml files on the Jenkins controller where they can be viewed by users with Item/Extended Read permission, or access to the Jenkins controller file system.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.main:jenkins-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.555.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.main:jenkins-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.556"
      }, {
        "fixed" : "2.568"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-53442"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/jenkins/commit/037c2c30cd26b926ec9df3d1b60e16b80608edb4"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/jenkins/commit/206f0b565f0ce16b5162160ffb96f5dd59002ff7"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/jenkins"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3744"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-311" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-13T20:51:18Z",
    "nvd_published_at" : "2026-06-10T14:16:37Z"
  }
}