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MEDIUM severity

Arbitrary file write vulnerability in Jenkins Cobertura PluginGHSA-m935-chfp-9f63

MEDIUMFix: jenkinsci/cobertura-plugin@ea41b3f

GHSA-m935-chfp-9f63 is a medium-severity (CVSS 6.5) Path Traversal vulnerability in org.jenkins-ci.plugins:cobertura. A fix is available for org.jenkins-ci.plugins:cobertura — see the affected versions and patch details below.

Also known asCVE-2020-2139
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs76th percentile — riskier than 76% of all scored CVEsHighest risk
0.50%2.44%4.38%6.32%5.2%1.6%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:cobertura

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

An arbitrary file write vulnerability in Jenkins Cobertura Plugin 1.15 and earlier allows attackers able to control the coverage report file contents to overwrite any file on the Jenkins master file system. Cobertura Plugin 1.16 sanitizes the file paths to prevent escape from the base directory.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:coberturaall versions1.16org.jenkins-ci.plugins:cobertura:1.16

Affected Products

1 product · 1 configurations
Application
coberturajenkins
≤ 1.15
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:cobertura, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:cobertura to 1.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-m935-chfp-9f63 is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

An arbitrary file write vulnerability in Jenkins Cobertura Plugin 1.15 and earlier allows attackers able to control the coverage report file contents to overwrite any file on the Jenkins master file system. Cobertura Plugin 1.16 sanitizes the file paths to prevent escape from the base directory.
O3 Security · Impact-Aware SCA

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Arbitrary file write vulnerability in Jenkins Cobertura Plugin