http4k before 6.48.0.0 Cookie Scoping Bypass via BasicCookieStorage
http4k (Maven artifact org.http4k:http4k-core) before 6.48.0.0, 5.42.0.0, and 4.51.0.0 ships a BasicCookieStorage (client-side cookie store used by ClientFilters.Cookies) that does not enforce RFC 6265 scoping rules for the cookie domain, path, and Secure attributes. When a single BasicCookieStorage instance is used to…
Severity high: primary CNA CVSS 8.3 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-09-27T01:28:31.397Z. Updated 2026-09-28T16:48:28.688Z.