---
id: GHSA-mjrx-74jh-7xgw
title: 'Duplicate Advisory: Guzzle: Host-only cookie scope is not preserved'
summary: 'Duplicate Advisory: Guzzle: Host-only cookie scope is not preserved'
severity: high
cvss: 5.9
cwe:
  - CWE-201
vendor: guzzlehttp
product: guzzlehttp/guzzle
ecosystem: composer
affected:
  - guzzlehttp/guzzle < 7.15.1
published: '2026-08-01'
updated: '2026-08-04'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-mjrx-74jh-7xgw'
references:
  - url: 'https://github.com/guzzle/guzzle/security/advisories/GHSA-wm3w-8rrp-j577'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-67355'
  - url: >-
      https://www.vulncheck.com/advisories/guzzlehttp-guzzle-before-host-only-cookie-scope
  - url: 'https://github.com/advisories/GHSA-mjrx-74jh-7xgw'
tags:
  - ghsa
  - composer
ingestedAt: '2026-08-05T05:58:04.785Z'
---

## Overview

## Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-wm3w-8rrp-j577. This link is maintained to preserve external references.

## Original Description
guzzlehttp/guzzle versions before 7.15.1 fail to preserve host-only cookie scope, storing the request host in the Domain field instead of marking cookies as host-only. Attackers controlling child hosts can receive host-only cookies intended only for parent hosts, potentially disclosing session identifiers and authorization tokens when the same cookie jar is reused across trust boundaries.

## Affected packages

- `guzzlehttp/guzzle < 7.15.1`

## Remediation

Refer to the advisory for the patched release.