CVE-2026-53442 Jenkins does not encrypt secrets from POST config.xml submissions before storing them in job configurations

What is CVE-2026-53442?

CVE-2026-53442 is a medium-severity vulnerability in Jenkins Jenkins, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-311

Which versions are affected by CVE-2026-53442?

5 open source packages ship an affected version, including org.jenkins-ci.main:jenkins-core and jenkins. It affects 1 product.

Products include Jenkins Jenkins.

How do I fix CVE-2026-53442?

Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 2.555.3 or 2.568.

Is CVE-2026-53442 being exploited?

There is no known exploitation of CVE-2026-53442 in the wild and no public exploit code.

Other vulnerabilities in Jenkins Jenkins

• CVE-2024-23897 Jenkins Command Line Interface (CLI) Path Traversal Exploited Critical 9.8
• CVE-2018-1000861 Jenkins Stapler Web Framework Deserialization of Untrusted Data Exploited Critical 9.8
• CVE-2017-1000353 Jenkins Remote Code Execution Exploited Critical 9.8
• CVE-2015-5317 Jenkins User Interface (UI) Information Disclosure Exploited High 7.5
• CVE-2021-21690 Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins Critical 9.8

All Jenkins Jenkins vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-jenkins-2026-53442, GHSA-m6wv-wh8g-64xc, MINI-746j-wpxj-r84x, MINI-8vqp-gff7-cm2f, MINI-9rjw-pfqv-23wr, MINI-c9c2-qfvm-2f88 and 3 more.