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MEDIUM severity

Missing permission check in Jenkins XebiaLabs XL Deploy Plugin allows enumerating credentials IDsGHSA-h246-g39x-7vmx

MEDIUMFix: jenkinsci/xldeploy-plugin@79ae204

GHSA-h246-g39x-7vmx is a medium-severity (CVSS 4.3) vulnerability in com.xebialabs.deployit.ci:deployit-plugin. A fix is available for com.xebialabs.deployit.ci:deployit-plugin — see the affected versions and patch details below.

Also known asCVE-2021-21662
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 ↗
0.9%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs62th percentile — riskier than 62% of all scored CVEsHighest risk
0.00%0.48%0.97%1.45%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
☕com.xebialabs.deployit.ci:deployit-plugin

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 XebiaLabs XL Deploy Plugin 10.0.1 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins. Those can be used as part of an attack to capture the credentials using another vulnerability.

An enumeration of credentials IDs in XebiaLabs XL Deploy Plugin 10.0.2 requires the appropriate permissions.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavencom.xebialabs.deployit.ci:deployit-pluginall versions10.0.2com.xebialabs.deployit.ci:deployit-plugin:10.0.2

Affected Products

1 product · 1 configurations
Application
xebialabs xl deployjenkins
≤ 10.0.1
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 com.xebialabs.deployit.ci:deployit-plugin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update com.xebialabs.deployit.ci:deployit-plugin to 10.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-h246-g39x-7vmx is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

Jenkins XebiaLabs XL Deploy Plugin 10.0.1 and earlier does not perform a permission check in a method implementing form validation. This allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins. Those can be used as part of an attack to capture the credentials using another vulnerability. An enumeration of credentials IDs in XebiaLabs XL Deploy Plugin 10.0.2 requires the appropriate permissions.
O3 Security · Impact-Aware SCA

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Missing permission check in Jenkins XebiaLabs XL Deploy…