GHSA-3fvr-2jw6-crq4

Summary

Duplicate Advisory: Guzzle: Unbounded response cookies risk denial of service

Severity

medium

CVSS

5.3

CWE

CWE-770

Published

2026-08-01

Updated

2026-08-04

Advisory details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-f283-ghqc-fg79. This link is maintained to preserve external references.

Original Description

guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerability in the CookieJar that accepts unlimited Set-Cookie header fields with no size restrictions. Attackers can return many large cookies from a malicious server, causing Guzzle to store excessive data in memory and generate oversized Cookie headers that fail in handlers or destination servers.

References

• https://github.com/advisories/GHSA-3fvr-2jw6-crq4
• https://github.com/guzzle/guzzle/security/advisories/GHSA-f283-ghqc-fg79
• https://nvd.nist.gov/vuln/detail/CVE-2026-67353
• https://www.vulncheck.com/advisories/guzzlehttp-guzzle-before-unbounded-cookie-denial-of-service

Related advisories

• GHSA-f283-ghqc-fg79 — medium · Packagist/guzzlehttp/guzzle
• CVE-2026-69246 — high · Packagist/guzzlehttp/guzzle
• GHSA-mqq9-gxg5-m58g — high · Packagist/guzzlehttp/guzzle
• GHSA-mjrx-74jh-7xgw — high · Packagist/guzzlehttp/guzzle
• CVE-2026-69245 — medium · Packagist/guzzlehttp/guzzle
• GHSA-32rq-jhr7-m3hh — medium · Packagist/guzzlehttp/guzzle
• GHSA-h95v-h523-3mw8 — medium · Packagist/guzzlehttp/guzzle
• GHSA-wm3w-8rrp-j577 — medium · Packagist/guzzlehttp/guzzle

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