Exposure of Sensitive System Information to an Unauthorized Control Sphere Affecting org.jenkins-ci.main:jenkins-core package, versions [,2.541.2)[2.500,2.551)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGJENKINSCIMAIN-15322730
- published20 Feb 2026
- disclosed18 Feb 2026
- creditUnknown
Introduced: 18 Feb 2026
CVE-2026-27100 (opens in a new tab)How to fix?
Upgrade org.jenkins-ci.main:jenkins-core to version 2.541.2, 2.551 or higher.
Overview
org.jenkins-ci.main:jenkins-core is an open source automation server.
Affected versions of this package are vulnerable to Exposure of Sensitive System Information to an Unauthorized Control Sphere via the Run Parameter values. An attacker can access information about the existence of jobs, builds, and display names by submitting build parameters that reference builds they do not have permission to view.