What is CVE-2020-2188?

CVE-2020-2188 is a medium-severity vulnerability in Jenkins Amazon Ec2, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2020-05-06.

How severe is CVE-2020-2188?

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

Auth bypass in Jenkins Amazon Ec2

CVE-2020-2188

A missing permission check in Jenkins Amazon EC2 Plugin 1.50.1 and earlier in form-related methods allowed users with Overall/Read access to enumerate credentials ID of credentials stored in Jenkins.

Vulnerability class: Broken Access Control

Published 2020-05-06 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.006 (49.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Jenkins Amazon Ec2
Jenkins Project Amazon Ec2 Plugin — versions unspecified

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

jenkins.io/security/advisory/2020-05-06/ (Vendor Advisory)
www.openwall.com/lists/oss-security/2020/05/06/3 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-2188?: CVE-2020-2188 is a medium-severity vulnerability in Jenkins Amazon Ec2, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2020-05-06.
How severe is CVE-2020-2188?: Medium severity. CVSS v3 base score is 4.3 out of 10.