# CVE-2022-36032: ReactPHP's HTTP server parses encoded cookie names so malicious `__Host-` and `__Secure-` cookies can be sent

Source: https://junglewise.ai/threats/cve-2022-36032-reactphp-s-http-server-parses-encoded-cookie-names-so-malicious  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-09-16  
License: CC BY 4.0 with a link back

CVE-2022-36032 · Severity: low · CVSS 3.1 · Published 2022-09-16

ReactPHP's HTTP server parses encoded cookie names so malicious `__Host-` and `__Secure-` cookies can be sent

Technologies: [react/http (Packagist)](https://junglewise.ai/threats/technologies/react-http). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2022-36032 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2022-36032 being exploited in the wild.

**How severe is CVE-2022-36032?** Low severity, with a CVSS score of 3.1, published 16 September 2022.

**Which products and versions are affected?** react/http (Packagist) ECOSYSTEM:introduced=0.7.0,fixed=1.7.0.

**Is there a fix for CVE-2022-36032?** Yes. react/http (Packagist): upgrade to 1.7.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2022-36032?** Check whether you run react/http (Packagist) 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

- react/http (Packagist): upgrade to 1.7.0 or later

  ```sh
  composer require react/http:^1.7.0
  ```


## Affected products

- react/http (Packagist) ECOSYSTEM:introduced=0.7.0,fixed=1.7.0

## Identifiers

- CVE-2022-36032
- GHSA-w3w9-vrf5-8mx8

## Related threats

- [react/http unbounded response header buffering DoS](https://junglewise.ai/threats/cve-2026-104827-react-http-unbounded-http-client-response-header-buffering-leads)
- [ReactPHP HTTP denial of service in chunked decoder](https://junglewise.ai/threats/cve-2026-84997-reactphp-http-denial-of-service-in-chunked-decoder)
- [ReactPHP's HTTP server continues parsing unused multipart parts after reaching input field and file upload limits](https://junglewise.ai/threats/cve-2023-26044-reactphp-s-http-server-continues-parsing-unused-multipart-parts)