> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/appsec-rules/ci-cd-security/pipeline-configuration/appsec-cicd-349.md).

# A deprecated Jenkins plugin is used on a Jenkins Instance

## Rule Details

|                        |                                             |
| ---------------------- | ------------------------------------------- |
| Cortex AppSec Rule ID  | APPSEC\_CICD\_349                           |
| Category - Subcategory | Pipeline Configuration - 3rd Party Services |
| Severity               | CRITICAL                                    |

## Impact

A deprecated Jenkins plugin is used in a Jenkins Instance. When a plugin is deprecated, it is often because the maintainer has stopped updating it. If a new security flaw is discovered in the plugin, there will be no official patch to fix it. Moreover, hackers specifically look for known vulnerabilities in older software versions. A single deprecated plugin can serve as an entry point for an attacker to gain control over your entire CI/CD pipeline.


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