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MEDIUM severity

CVE-2020-2188 — ec2

MEDIUM

CVE-2020-2188 is a medium-severity (CVSS 4.3) CWE-863 vulnerability in org.jenkins-ci.plugins:ec2. A fix is available for org.jenkins-ci.plugins:ec2 — see the affected versions and patch details below.

Users with Overall/Read access can enumerate credentials IDs in Amazon EC2 Plugin

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs51th percentile — riskier than 51% of all scored CVEsHighest risk
0.00%0.38%0.76%1.15%0.0%0.6%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕org.jenkins-ci.plugins:ec2

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Amazon EC2 Plugin provides a list of applicable credentials IDs to allow users configuring the plugin to select the one to use.

This functionality does not correctly check permissions in Amazon EC2 Plugin 1.50.1 and earlier, allowing any user with Overall/Read permission to get a list of valid credentials IDs. Those can be used as part of an attack to capture the credentials using another vulnerability.

An enumeration of credentials IDs in Amazon EC2 Plugin 1.50.2 now requires Overall/Administer permission.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:ec2all versions1.50.2org.jenkins-ci.plugins:ec2:1.50.2

Affected Products

1 product · 1 configurations
Application
amazon ec2jenkins
≤ 1.50.1
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:ec2, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:ec2 to 1.50.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-2188 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

Amazon EC2 Plugin provides a list of applicable credentials IDs to allow users configuring the plugin to select the one to use. This functionality does not correctly check permissions in Amazon EC2 Plugin 1.50.1 and earlier, allowing any user with Overall/Read permission to get a list of valid credentials IDs. Those can be used as part of an attack to capture the credentials using another vulnerability. An enumeration of credentials IDs in Amazon EC2 Plugin 1.50.2 now requires Overall/Administer permission.
O3 Security · Impact-Aware SCA

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CVE-2020-2188: ec2 — Fixed in 1.50.2