CVE-2026-59883

Guzzle is an extensible PHP HTTP client. Prior to 7.12.3, CookieJar did not restrict cookies scoped to IP-address or bare-numeric Domain values to the exact host that set them, because SetCookie::matchesDomain applied ordinary suffix matching to domains such as 192.168.0.1, ::1, or 1, allowing...

USN-6535-1 curl vulnerabilities

Harry Sintonen discovered that curl incorrectly handled mixed case cookie domains. A remote attacker could possibly use this issue to set cookies that get sent to different and unrelated sites and domains. CVE-2023-46218 Maksymilian Arciemowicz discovered that curl incorrectly handled long file...

cookie leak for TLDs

libcurl wrongly allows cookies to be set for Top Level Domains TLDs, thus making them apply broader than cookies are allowed. This can allow arbitrary sites to set cookies that then would get sent to a different and unrelated site or domain...

Mozilla Cookie isolation error (MFSA 2011-24)

Mozilla Firefox before 3.6.18, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 do not distinguish between cookies for two domain names that differ only in a trailing dot, which allows remote web servers to bypass the Same Origin Policy via Set-Cookie headers...