CVE-2026-55767 | Guzzle up to 7.12.0 Cookie Domain SetCookie::matchesDomain origin validation (GHSA-cwxw-98qj-8qjx)
A vulnerability categorized as problematic has been discovered in Guzzle up to 7.12.0. This issue affects the function SetCookie::matchesDomain of the component Cookie Domain Handler. Such manipulation leads to origin validation error.
This vulnerability is documented as CVE-2026-55767. The attack can be executed remotely. There is not any exploit available.
It is advisable to upgrade the affected component.