This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-67353 →

DEBIAN-CVE-2026-67353

guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerability in the CookieJar that accepts unlimited Set-Cookie header fields wi...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 guzzle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 guzzle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 guzzle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.15.1-1"}]}]

References

advisory security-tracker.debian.org