Unrated severityNVD Advisory· Published Aug 2, 2026
Debian guzzle: guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerabili…
CVE-2026-67353
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.
Affected products
1- Range: <7.15.1
Patches
Vulnerability mechanics
News mentions
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