> 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/flow-control-mechanism/appsec-cicd-197.md).

# Merging to default branch with outdated code allowed

## Rule Details

|                       |                        |
| --------------------- | ---------------------- |
| Cortex AppSec Rule ID | APPSEC\_CICD\_197      |
| Category              | Flow Control Mechanism |
| Severity              | LOW                    |

## Impact

Merging branches into the default branch without ensuring they are up-to-date can present a security risk. This is because merging outdated code may result in the omission of the latest patches and updates from the main stream, including critical security fixes. As a result, potential vulnerabilities may remain unresolved, exposing the system to security threats.

## Recommended Solution - Buildtime

Add branch protection rules to your repository, requiring that all branches must be up-to-date before being merged into the default branch.

For additional instructions, refer to <https://docs.github.com/en/repositories/configuring-branches-and-merges-in-your-repository/managing-protected-branches/about-protected-branches#require-status-checks-before-merging>.


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