CVE-2026-55767— guzzle 输入验证错误漏洞

Guzzle: Dot-Only Cookie Domains Match All Hosts in guzzlehttp/guzzle

Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, CookieJar incorrectly accepts cookies with a dot-only Domain attribute and whitespace-padded variants. SetCookie::matchesDomain() removes leading dots from the cookie domain, normalizing dot-only values to the empty string; SetCookie::validate() only rejected a strictly empty domain, so these cookies could be stored and the empty normalized domain was treated as matching any request host. An attacker-controlled origin that an application requests with a shared cookie jar can therefore set a cookie that Guzzle later sends to unrelated hosts using the same jar. This may allow cookie injection or session fixation against downstream services, depending on how those services interpret the injected cookie. This vulnerability is fixed in 7.12.1.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

源验证错误

guzzle 输入验证错误漏洞

guzzle guzzle是guzzle组织的一款用于简化HTTP请求的PHP开发工具。 guzzle 7.12.1之前版本存在输入验证错误漏洞，该漏洞源于CookieJar错误地接受仅带点的Domain属性和空白填充变体，可能导致攻击者通过共享的cookie jar注入Cookie或针对下游服务进行会话固定。

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