What is CVE-2019-10420?

CVE-2019-10420 is a medium-severity vulnerability in Jenkins Assembla, classified under Insufficiently Protected Credentials. CVSS score: 5.5/10. Published 2019-09-25.

How severe is CVE-2019-10420?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Jenkins Assembla

CVE-2019-10420

Jenkins Assembla Plugin stores credentials unencrypted in its global configuration file on the Jenkins master where they can be viewed by users with access to the master file system.

Published 2019-09-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (25.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Jenkins Assembla
Jenkins Project Assembla Plugin — versions 1.4 and earlier

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

jenkins.io/security/advisory/2019-09-25/ (Vendor Advisory)
www.openwall.com/lists/oss-security/2019/09/25/3 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2019-10420?: CVE-2019-10420 is a medium-severity vulnerability in Jenkins Assembla, classified under Insufficiently Protected Credentials. CVSS score: 5.5/10. Published 2019-09-25.
How severe is CVE-2019-10420?: Medium severity. CVSS v3 base score is 5.5 out of 10.