Description

Guzzle is a PHP HTTP client. Guzzle prior to versions 6.5.6 and 7.4.3 contains a vulnerability with the cookie middleware. The vulnerability is that it is not checked if the cookie domain equals the domain of the server which sets the cookie via the Set-Cookie header, allowing a malicious server to set cookies for unrelated domains. The cookie middleware is disabled by default, so most library consumers will not be affected by this issue. Only those who manually add the cookie middleware to the handler stack or construct the client with ['cookies' => true] are affected. Moreover, those who do not use the same Guzzle client to call multiple domains and have disabled redirect forwarding are not affected by this vulnerability. Guzzle versions 6.5.6 and 7.4.3 contain a patch for this issue. As a workaround, turn off the cookie middleware.

Severity HIGH

CVSS Score 8.0

CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

CWE CWE-200

Public Exploit ✅ No

Source NVD

Published 2022-05-25

Updated 2026-06-15

Modified 2024-11-21

Fix URL https://github.com/guzzle/guzzle/commit/74a8602c6faec9ef74b7a9391ac82c5e65b1cdab

Software	From version	Fixed in
debian-linux	—	—
drupal	—	—
drupal/core	9.3.0	9.3.14
guzzle	7.0.0	7.4.3
guzzlehttp/guzzle	7.0.0	7.4.3