CVE-2026-119416— CakePHP through 5.4.3 Cookie Leakage via HTTP Client CookieCollection Domain Matching

Quick assessment

Affected

cakephp cakephp

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CakePHP 5.4.3 及更早版本中存在一个 Cookie 域名验证不当的漏洞，该漏洞位于 HTTP 客户端的 CookieCollection 组件中。攻击者利用未锚定的后缀匹配机制，可诱导恶意服务器接收并植入 Cookie。若攻击者控制了一个域名后缀与受害者域名相同的主机，或发送了与无关主机相关的值，则能够窃取会话 Cookie，或将 Cookie 注入到客户端共享的 Cookie 存储中。

CVSS 4.8 · Medium Updated Oct 30, 2026

Possible ATT&CK Techniques 2 AI

T1055 · Process Injection T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

CakePHP through 5.4.3 Cookie Leakage via HTTP Client CookieCollection Domain Matching

Source: CVE Program / CVE List V5

Vulnerability Description

CakePHP through 5.4.3 contains an improper cookie domain validation vulnerability in the Http Client CookieCollection that allows malicious servers to receive and plant cookies by abusing unanchored suffix matching. Attackers controlling a host such as one ending in a victim domain suffix, or sending Set-Cookie Domain values for unrelated hosts, can steal session cookies or inject cookies into shared client cookie jars.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

源验证错误

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
cakephp	cakephp	0 ~ 5.4.3	-

II. Public POCs for CVE-2026-119416

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-119416

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Other References for CVE-2026-119416 (10)

https://github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Http/Cookie/CookieCollection.php#L315 technical-description
https://github.com/cakephp/cakephp/pull/19702 patch issue-tracking
https://github.com/cakephp/cakephp/commit/bbba5ed06d5cea7e78333b01e65557cff7a28306 patch
https://github.com/cakephp/cakephp product
https://abraxaslabs.tech/research/cakephp-cookie-suffix third-party-advisory
https://github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Http/Cookie/CookieCollection.php#L74 technical-description
https://github.com/cakephp/cakephp/commit/01753266738606bc0e48e61e44a6e252f11386f9 patch
https://github.com/cakephp/cakephp/commit/5d9d01a91f0e678d857a94115de12c3e02f3fbba patch
https://github.com/cakephp/cakephp/commit/819b45cbcc5ba864568cb57f62e4fde650b41161 patch
https://www.vulncheck.com/advisories/cakephp-through-5.4.3-cookie-leakage-via-http-client-cookiecollection-domain-matching third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-119416

Same Patch Batch · cakephp · 2026-10-30 · 5 CVEs total

CVE-2026-119418	8.1 HIGH	CakePHP through 5.4.3 SQL Injection via WindowExpression range() and frame()
CVE-2026-119419	8.1 HIGH	CakePHP through 5.4.3 SQL Injection via StringExpression and IdentifierExpression Collatio
CVE-2026-119415	3.7 LOW	CakePHP through 5.4.3 MIME Header Injection via FormDataPart Content-Type
CVE-2026-119417	3.7 LOW	CakePHP through 5.4.3 Email Header Injection via Bare CR/LF in SmtpTransport and MailTrans

IV. Related Vulnerabilities

Same product: cakephp

Same vendor: cakephp

Same weakness: CWE-346