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 by users with Item/Extended Read permission, or access to the Jenkins controller file system.

Published 2026-06-10 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.002 (12.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Jenkins
Jenkins Project — versions 2.568, 2.555.3

Weakness classification (CWE)

CWE-311 — Missing Encryption of Sensitive Data

References

www.jenkins.io/security/advisory/2026-06-10/ (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.