CVE-2026-69215

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The CookieJar client middleware uses unanchored substring checks instead of RFC 6265 domain and path matching when deciding whether to attach a stored cookie. A cookie for example.com can consequently be sent to an...

CVE-2026-69214

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The CookieJar client middleware stores a response cookie’s Domain attribute without checking that it domain-matches the host that supplied the cookie or rejecting public suffixes. A malicious or compromised server...

CVE-2026-69215

Http4s is a Scala library for HTTP services. Prior to 0.23.35 and 1.0.0-M47 , its CookieJar client middleware uses unanchored substring checks instead of proper RFC 6265 domain and path matching when deciding whether to attach a stored cookie. As a result, a cookie intended for example.com can be...

CVE-2026-69215 Http4s: CookieJar middleware matches by substring, leaking cookies cross-origin

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The CookieJar client middleware uses unanchored substring checks instead of RFC 6265 domain and path matching when deciding whether to attach a stored cookie. A cookie for example.com can consequently be sent to an...

CVE-2026-69214

Http4s , a Scala library for HTTP services, is affected through its CookieJar client middleware . Prior to 0.23.35 and 1.0.0-M47 , the middleware stores a response cookie's Domain attribute without validating that it domain-matches the supplying host or rejecting public suffixes. A malicious or c...

CVE-2026-69214 Http4s: CookieJar middleware accepts arbitrary Set-Cookie domain

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The CookieJar client middleware stores a response cookie’s Domain attribute without checking that it domain-matches the host that supplied the cookie or rejecting public suffixes. A malicious or compromised server...