{"id":"CVE-2026-100725","revision":null,"records":[{"revision":"50c8241d99a649a6b710c5daf02a0224","observedAt":"2026-10-29T22:48:55.035+00:00","statement":{"source":"cve-program","id":"CVE-2026-100725","aliases":[],"title":"http4k before 6.48.0.0 Cookie Scoping Bypass via BasicCookieStorage","description":"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 talk to more than one origin or scheme, cookies stored for one origin can be sent to other origins, and cookies marked Secure can be sent over plain HTTP, potentially disclosing session cookies or other sensitive values to unauthorized hosts or network observers. Clients that use a storage instance for a single origin are not affected.","state":0,"publishedAt":"2026-09-27T01:28:31.397+00:00","modifiedAt":"2026-10-29T21:15:26.791+00:00","affected":[{"ecosystem":"Vendor product","name":"http4k","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"http4k\",\n                    \"product\": \"http4k\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:maven/org.http4k/http4k-core\",\n                    \"versions\": [\n                        {\n                            \"version\": \"6.0.0.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"6.48.0.0\"\n                        },\n                        {\n                            \"version\": \"6.48.0.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"http4k","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"http4k\",\n                    \"product\": \"http4k\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:maven/org.http4k/http4k-core\",\n                    \"versions\": [\n                        {\n                            \"version\": \"5.0.0.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"5.42.0.0\"\n                        },\n                        {\n                            \"version\": \"5.42.0.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"http4k","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"http4k\",\n                    \"product\": \"http4k\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:maven/org.http4k/http4k-core\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"4.51.0.0\"\n                        },\n                        {\n                            \"version\": \"4.51.0.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":8.3,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/http4k/http4k/security/advisories/GHSA-pr33-38xx-6r26","https://github.com/http4k/http4k/commit/6a9b44d743","https://www.vulncheck.com/advisories/http4k-before-6.48.0.0-cookie-scoping-bypass-via-basiccookiestorage"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100725","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100725","identifiers":["CVE-2026-100725"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-1e21f19531e44b2e94a04caf6ae93614","complete":true,"records":13623,"lastAttemptAt":"2026-11-07T01:38:26.744654+00:00","lastSuccessAt":"2026-11-07T01:38:26.741+00:00","error":null,"lastVerifiedAt":"2026-11-07T01:38:26.741+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13685,"expectedIdentifiers":13685,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-07T01:26:54.7341767+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-07T01:26:54.7341767+00:00","lastSuccessAt":"2026-11-07T01:26:54.8884513+00:00","error":null,"lastVerifiedAt":"2026-11-07T01:26:54.8884516+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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