> 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/compute/appsec2-docker-6.md).

# Dockerfile Node.js certificate validation is disabled with the NODE\_TLS\_REJECT\_UNAUTHORIZED environm

## Rule Details

|                        |                                            |
| ---------------------- | ------------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC2\_DOCKER\_6                         |
| Category - Subcategory | Public Exposure - Encryption And Protocols |
| Provider               | OTHER                                      |
| Severity               | HIGH                                       |
| Framework              | DOCKER                                     |

## Impact

Setting the `NODE_TLS_REJECT_UNAUTHORIZED` environment variable to `0` within Dockerfiles for Node.js applications is a security risk. This setting instructs Node.js to bypass SSL/TLS certificate verification for outgoing HTTPS requests.

By disabling SSL/TLS certificate verification, Node.js applications are exposed to potential man-in-the-middle (MitM) attacks. Attackers can intercept, modify, or eavesdrop on the traffic between the Node.js application and an external server, potentially leading to data breaches or the injection of malicious code.

## How to Fix

## \[source,go]

* ENV NODE\_TLS\_REJECT\_UNAUTHORIZED=0 RUN npm install somepackage

***


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