What is CVE-2026-53442?

CVE-2026-53442 is a medium-severity vulnerability in Jenkins, classified under Missing Encryption of Sensitive Data. CVSS score: 5.3/10. Published 2026-06-10.

How severe is CVE-2026-53442?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Jenkins

CVE-2026-53442

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 b…

EPSS: 0.002 (8.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Jenkins
Jenkins Project — versions 2.568, 2.555.3

Weakness classification (CWE)

CWE-311 — Missing Encryption of Sensitive Data

References

jenkinsci-cert@googlegroups.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-53442?: CVE-2026-53442 is a medium-severity vulnerability in Jenkins, classified under Missing Encryption of Sensitive Data. CVSS score: 5.3/10. Published 2026-06-10.
How severe is CVE-2026-53442?: Medium severity. CVSS v3 base score is 5.3 out of 10.