---
title: Auto escape should be set to true
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > Code Security > Static Code Analysis (SAST) > SAST
  Rules > Auto escape should be set to true
---

# Auto escape should be set to true

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This product is not supported for your selected [Datadog site](https://docs.datadoghq.com/getting_started/site). ().
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{% /callout %}

## Metadata{% #metadata %}

**ID:** `python-security/jinja-autoescape`

**Language:** Python

**Severity:** Notice

**Category:** Security

**CWE**: [94](https://cwe.mitre.org/data/definitions/94.html)

**Related CWEs**:

- [96](https://cwe.mitre.org/data/definitions/96.html)
- [1336](https://cwe.mitre.org/data/definitions/1336.html)

## Description{% #description %}

By default, jinja2 is not autoescaping. This can lead to XSS attacks. The `autoescape` parameter should always be `True`.

#### Learn More{% #learn-more %}

- [OWASP XSS](https://owasp.org/www-community/attacks/xss/)
- [CWE-94 - Improper Control of Generation of Code](https://cwe.mitre.org/data/definitions/94.html)

## Non-Compliant Code Examples{% #non-compliant-code-examples %}

```python
import jinja2
env = jinja2.Environment(
    loader=PackageLoader("yourapp"),
    autoescape=False # should be True
)
```

```python
from jinja2 import Environment, PackageLoader, select_autoescape
env = Environment(
    loader=PackageLoader("yourapp"),
    autoescape=False # should be True
)
```

## Compliant Code Examples{% #compliant-code-examples %}

```python
import jinja2
env = Environment(
    loader=PackageLoader("yourapp"),
    autoescape=True
)
```

```python
from jinja2 import Environment, PackageLoader, select_autoescape
env = Environment(
    loader=PackageLoader("yourapp"),
    autoescape=select_autoescape()
)
```

```python
from jinja2 import Environment, PackageLoader, select_autoescape
env = Environment(
    loader=PackageLoader("yourapp"),
    autoescape=True
)
```
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