CVE-2026-53442

Medium

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.

SeverityMedium

CVSS5.3

Exploit probability—

Product

Jenkins

PublishedJun 10, 2026

First seenJun 10, 2026

Weakness typeCWE-311CWE-311

How to fix

Update

jenkins jenkins2.555.3, 2.568 or later
org.jenkins-ci.main:jenkins-core2.555.3, 2.568 or later

Vendor advisories

jenkins.io/security/advisory/2026-06-10/#SECURITY-3744

Affected products

Product	Affected versions	Fixed in
jenkins jenkins	v < 2.555.3, v < 2.568	2.555.3, 2.568
org.jenkins-ci.main:jenkins-coreMaven	v < 2.555.3, 2.556 ≤ v < 2.568	2.555.3, 2.568

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