Executive brief
The Jenkins Pipeline: Groovy Libraries Plugin is used to manage shared code libraries in Jenkins, a popular continuous integration/continuous deployment (CI/CD) automation server. A cross-site request forgery (CSRF) vulnerability allows an attacker to trick an authenticated Jenkins administrator into unknowingly deleting shared library caches, disrupting builds and deployments that depend on those libraries. This could halt development pipelines and require manual recovery of the deleted caches.
Technical details
This is a cross-site request forgery (CSRF) vulnerability in Jenkins Pipeline: Groovy Libraries Plugin versions 798.v5cc688825312 and earlier. The vulnerable component lacks CSRF token validation on cache deletion operations, allowing attackers to craft malicious web pages that, when visited by an authenticated administrator, trigger cache deletion requests without the user's knowledge or consent. The attack requires network access to Jenkins and an authenticated user with cache management permissions to visit an attacker-controlled page. No authentication is required from the attacker themselves. The impact is limited to denial of service through cache deletion; arbitrary code execution is not possible. A fix is available in plugin versions after 798.v5cc688825312.
Affected products
- Jenkins Pipeline: Groovy Libraries Plugin 798.v5cc688825312 and earlier
Timeline
- 2026-09-02: disclosed