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MEDIUM severity

CVE-2018-1000420 — mesos

MEDIUM

CVE-2018-1000420 is a medium-severity (CVSS 6.5) CWE-863 vulnerability in org.jenkins-ci.plugins:mesos. A fix is available for org.jenkins-ci.plugins:mesos — see the affected versions and patch details below.

Improper authorization vulnerability in Jenkins Mesos Plugin

Also known asGHSA-23xr-9xxr-vg3c
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs73th percentile — riskier than 73% of all scored CVEsHighest risk
0.00%0.65%1.30%1.95%0.2%1.4%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:mesos

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 improper authorization vulnerability exists in Jenkins Mesos Plugin 0.17.1 and earlier in MesosCloud.java that allows attackers with Overall/Read access to obtain credentials IDs for credentials stored in Jenkins.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:mesosall versions0.18org.jenkins-ci.plugins:mesos:0.18

Affected Products

1 product · 1 configurations
Application
mesosapache
≤ 0.17.1
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:mesos, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:mesos to 0.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-1000420 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

An improper authorization vulnerability exists in Jenkins Mesos Plugin 0.17.1 and earlier in MesosCloud.java that allows attackers with Overall/Read access to obtain credentials IDs for credentials stored in Jenkins.
O3 Security · Impact-Aware SCA

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CVE-2018-1000420: mesos — Fixed in 0.18