XXE vulnerability in Jenkins Performance Plugin

MEDIUM 6.5CVE-2021-21701 · GHSA-hr8p-76q8-fxwq · Published 12/11/2021 · updated 17/06/2026

In short

CVE-2021-21701 is a MEDIUM (CVSS 6.5) vulnerability affecting org.jenkins-ci.plugins:performance, performance (jenkins).
Chance of exploitation in the next 30 days (EPSS): 1.7%, higher than 77.6% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
org.jenkins-ci.plugins:performance Maven	`≤ 3.20`	No fix yet
performance jenkins	`≤ 3.20`	No fix yet

Description

Jenkins Performance Plugin 3.20 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers able to control workspace contents to have Jenkins parse a crafted XML report file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

As of publication of this advisory, there is no fix.

NVD description

Jenkins Performance Plugin 3.20 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

References

nvd.nist.gov/vuln/detail/CVE-2021-21701 · ADVISORY
jenkinsci/performance-plugin · PACKAGE
jenkins.io/security/advisory/2021-11-12 · WEB
zerodayinitiative.com/advisories/ZDI-21-1313 · WEB
openwall.com/lists/oss-security/2021/11/12/1 · WEB
zerodayinitiative.com/advisories/ZDI-21-1313 · Third Party Advisory

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