CVE-2022-36032

Name: CVE-2022-36032
Creator: NVD / NIST
Published: 2022-09-06T19:15:08.48+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.78%

Last modified Jun 17, 2026

CVE-2022-36032 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. ReactPHP HTTP is a streaming HTTP client and server implementation for ReactPHP. In ReactPHP's HTTP server component versions starting with 0.7.0 and prior to 1.7.0, when ReactPHP is processing incoming HTTP cookie values, the cookie names are url-decoded. EPSS estimates a 0.78% chance of exploitation in the next 30 days.

Description

ReactPHP HTTP is a streaming HTTP client and server implementation for ReactPHP. In ReactPHP's HTTP server component versions starting with 0.7.0 and prior to 1.7.0, when ReactPHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like `__Host-` and `__Secure-` confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. This issue is fixed in ReactPHP HTTP version 1.7.0. As a workaround, Infrastructure or DevOps can place a reverse proxy in front of the ReactPHP HTTP server to filter out any unexpected `Cookie` request headers.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Probability

0.78%

51.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Reactphp	Http	>= 0.7.0, < 1.7.0

References

https://github.com/reactphp/http/commit/663c9a3b77b71463fa7fcb76a6676ffd16979dd6Patch, Third Party Advisory
https://github.com/reactphp/http/pull/175Issue Tracking, Patch, Third Party Advisory
https://github.com/reactphp/http/releases/tag/v1.7.0Release Notes, Third Party Advisory
https://github.com/reactphp/http/security/advisories/GHSA-w3w9-vrf5-8mx8Issue Tracking, Patch, Third Party Advisory
https://github.com/reactphp/http/commit/663c9a3b77b71463fa7fcb76a6676ffd16979dd6Patch, Third Party Advisory
https://github.com/reactphp/http/pull/175Issue Tracking, Patch, Third Party Advisory
https://github.com/reactphp/http/releases/tag/v1.7.0Release Notes, Third Party Advisory
https://github.com/reactphp/http/security/advisories/GHSA-w3w9-vrf5-8mx8Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Sep 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-36032?

How severe is CVE-2022-36032?

CVE-2022-36032 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.

How do I fix CVE-2022-36032?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-36032?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST