CSRF vulnerability in Jenkins Configuration Slicing Plugin

HIGH 8.8CVE-2021-21617 · GHSA-42mm-x828-56c7 · Published 24/02/2021 · updated 17/06/2026

In short

CVE-2021-21617 is a HIGH (CVSS 8.8) vulnerability affecting org.jenkins-ci.plugins:configurationslicing, configuration slicing (jenkins).
Chance of exploitation in the next 30 days (EPSS): 0.94%, higher than 61.2% of all vulnerabilities.
Fix: update to 1.52 or later.

Package	Affected versions	Patched versions
org.jenkins-ci.plugins:configurationslicing Maven	`< 1.52`	`1.52`
configuration slicing jenkins	`≤ 1.51`	No fix yet

Description

Jenkins Configuration Slicing Plugin 1.51 and earlier does not require POST requests for the form submission endpoint reconfiguring slices, resulting in a cross-site request forgery (CSRF) vulnerability.

This vulnerability allows attackers to apply different slice configurations to attacker-specified jobs.

Jenkins Configuration Slicing Plugin 1.52 requires POST requests for the affected HTTP endpoint.

NVD description

A cross-site request forgery (CSRF) vulnerability in Jenkins Configuration Slicing Plugin 1.51 and earlier allows attackers to apply different slice configurations.

References

nvd.nist.gov/vuln/detail/CVE-2021-21617 · ADVISORY
jenkinsci/configurationslicing-plugin commit b22b82d · WEB
jenkinsci/configurationslicing-plugin · PACKAGE
jenkins.io/security/advisory/2021-02-24 · WEB
openwall.com/lists/oss-security/2021/02/24/3 · WEB

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