NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
☕
☕ Maven
Not in CISA KEV
HIGH severity

CVE-2020-2144 — rundeck

HIGHFix: jenkinsci/rundeck-plugin@9222a21

CVE-2020-2144 is a high-severity (CVSS 7.1) XML External Entity (XXE) vulnerability in org.jenkins-ci.plugins:rundeck. A fix is available for org.jenkins-ci.plugins:rundeck — see the affected versions and patch details below.

XXE vulnerability in Rundeck Plugin

Also known asGHSA-5xh7-6v3x-vrhj
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs65th percentile — riskier than 65% of all scored CVEsHighest risk
0.00%0.53%1.05%1.58%0.1%1.1%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:rundeck

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

Rundeck Plugin 3.6.6 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows a user with Overall/Read access to have Jenkins parse a crafted HTTP request with XML data that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

Rundeck Plugin 3.6.7 disables external entity resolution for its XML parser.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:rundeckall versions3.6.7org.jenkins-ci.plugins:rundeck:3.6.7

Affected Products

1 product · 1 configurations
Application
rundeckjenkins
≤ 3.6.6
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:rundeck, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:rundeck to 3.6.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-2144 is resolved across your whole dependency graph.

  3. Workarounds

    Restrict outbound requests from the affected component to an allowlist of hosts, block access to link-local and internal address ranges at the network layer, and require authentication on internal services so a forged request cannot reach them unauthenticated.

Frequently Asked Questions

Rundeck Plugin 3.6.6 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks. This allows a user with Overall/Read access to have Jenkins parse a crafted HTTP request with XML data that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. Rundeck Plugin 3.6.7 disables external entity resolution for its XML parser.
O3 Security · Impact-Aware SCA

Is CVE-2020-2144 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works
CVE-2020-2144: rundeck SSRF — Fixed in 3.6.7