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Not in CISA KEV
LOW severity

CVE-2018-1999031 — meliora-testlab

LOWFix: jenkinsci/meliora-testlab-plugin@59d43d5

CVE-2018-1999031 is a low-severity (CVSS 3.3) Information Exposure vulnerability in org.jenkins-ci.plugins:meliora-testlab. A fix is available for org.jenkins-ci.plugins:meliora-testlab — see the affected versions and patch details below.

Jenkins meliora-testlab Plugin allows attackers with file system access to Jenkins master to obtain API key

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

EPSS Exploitation Probability

via FIRST.org ↗
0.9%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs60th percentile — riskier than 60% of all scored CVEsHighest risk
0.00%0.48%0.95%1.43%0.1%0.9%May 26Aug 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:meliora-testlab

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 exposure of sensitive information vulnerability exists in Jenkins meliora-testlab Plugin 1.14 and earlier in TestlabNotifier.java that allows attackers with file system access to the Jenkins master to obtain the API key stored in this plugin's configuration. Additionally, the API key was not masked from view using a password form field. As of version 1.15, the plugin stores the API Key encrypted in the configuration files on disk and no longer transfers it to users viewing the configuration form in plain text.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:meliora-testlaball versions1.15org.jenkins-ci.plugins:meliora-testlab:1.15

Affected Products

1 product · 1 configurations
Application
meliora testlabjenkins
≤ 1.14
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:meliora-testlab, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:meliora-testlab to 1.15 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-1999031 is resolved across your whole dependency graph.

  3. Workarounds

    Assume what was exposed is already known: rotate any credential, token or key that the affected component could return, restrict the endpoint to callers that genuinely need it, and strip sensitive fields from responses and error output at the boundary rather than relying on the client not to read them.

Frequently Asked Questions

An exposure of sensitive information vulnerability exists in Jenkins meliora-testlab Plugin 1.14 and earlier in TestlabNotifier.java that allows attackers with file system access to the Jenkins master to obtain the API key stored in this plugin's configuration. Additionally, the API key was not masked from view using a password form field. As of version 1.15, the plugin stores the API Key encrypted in the configuration files on disk and no longer transfers it to users viewing the configuration form in plain text.
O3 Security · Impact-Aware SCA

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CVE-2018-1999031: meliora-testlab — Fixed in 1.15