What is CVE-2025-67638?

CVE-2025-67638 is a medium-severity vulnerability in Jenkins, classified under Cleartext Storage of Sensitive Information. CVSS score: 4.3/10. Published 2025-12-10.

How severe is CVE-2025-67638?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Jenkins

CVE-2025-67638

Jenkins 2.540 and earlier, LTS 2.528.2 and earlier does not mask build authorization tokens displayed on the job configuration form, increasing the potential for attackers to observe and capture them.

EPSS: 0.001 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Jenkins
Jenkins Project — versions 2.541, 2.528.3

Weakness classification (CWE)

CWE-312 — Cleartext Storage of Sensitive Information

References

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

Frequently asked questions

What is CVE-2025-67638?: CVE-2025-67638 is a medium-severity vulnerability in Jenkins, classified under Cleartext Storage of Sensitive Information. CVSS score: 4.3/10. Published 2025-12-10.
How severe is CVE-2025-67638?: Medium severity. CVSS v3 base score is 4.3 out of 10.