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HIGH severity

GHSA-4rj6-9pjh-882r — junit

HIGHFix: jenkinsci/junit-plugin@15f39fc

GHSA-4rj6-9pjh-882r is a high-severity (CVSS 8.3) XML External Entity (XXE) vulnerability in org.jenkins-ci.plugins:junit. A fix is available for org.jenkins-ci.plugins:junit — see the affected versions and patch details below.

Improper Restriction of XML External Entity Reference in Jenkins JUnit Plugin

Also known asCVE-2018-1000056
Published
May 14, 2022
Updated
Feb 20, 2024
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 26, 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 CVEs64th percentile — riskier than 64% of all scored CVEsHighest risk

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

How urgent is this, really

GHSA-4rj6-9pjh-882r by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 379,842 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

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

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

Jenkins JUnit Plugin 1.23 and earlier processes XML external entities in files it parses as part of the build process, allowing attackers with user permissions in Jenkins to extract secrets from the Jenkins master, perform server-side request forgery, or denial-of-service attacks.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:junitall versions1.24org.jenkins-ci.plugins:junit:1.24

Affected Products

1 product · 1 configurations
Application
junitjenkins
≤ 1.23
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:junit, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:junit to 1.24 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4rj6-9pjh-882r 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

Jenkins JUnit Plugin 1.23 and earlier processes XML external entities in files it parses as part of the build process, allowing attackers with user permissions in Jenkins to extract secrets from the Jenkins master, perform server-side request forgery, or denial-of-service attacks.
O3 Security · Impact-Aware SCA

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