> 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/iac-security/iam/appsec-openapi-5.md).

# OpenAPI Security object for operations, if defined, must define a security scheme, otherwise it shou

## Rule Details

|                        |                        |
| ---------------------- | ---------------------- |
| Cortex AppSec Rule ID  | APPSEC\_OPENAPI\_5     |
| Category - Subcategory | Public Exposure - APIs |
| Provider               | OTHER                  |
| Severity               | HIGH                   |
| Framework              | OpenAPI                |

## Impact

If security schemes are not defined in OpenAPI Security Objects for Operations, the API may be exposed without proper authentication, which could lead to unauthorized access. This could result in security vulnerabilities that can be exploited by attackers to gain access to sensitive data or perform unauthorized actions.

## How to Fix

**OpenAPI**

Ensure that you have an authentication type in the security section of your path. For example:

```yaml
paths:
  "/":
    get:
      operationId: id
      summary: example
-     security: []
+     security:
+       - OAuth2:
+           - write
```


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