# PYSEC-2019-58 - In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an…

Source: https://junglewise.ai/threats/pysec-2019-58-in-twisted-before-19-2-1-twisted-web-did-not-validate-or-700548d9  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2019-06-10  
License: CC BY 4.0 with a link back

Severity: info · Published 2019-06-10

In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.

Technologies: [twisted (PyPI)](https://junglewise.ai/threats/technologies/pypi-twisted). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Informational severity, published 10 June 2019.

**Which products and versions are affected?** twisted (PyPI) GIT:introduced=0,fixed=6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2|ECOSYSTEM:introduced=0,fixed=19.2.1.

**Is there a fix for This vulnerability?** Yes. twisted (PyPI): upgrade to 19.2.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run twisted (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- twisted (PyPI): upgrade to 19.2.1 or later

  ```sh
  pip install "twisted>=19.2.1"
  ```


## Affected products

- twisted (PyPI) GIT:introduced=0,fixed=6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2|ECOSYSTEM:introduced=0,fixed=19.2.1

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