{"schema_version":1,"title":"Http4k-Core vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Http4k-Core: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-53659, was published on 14 September 2026.","url":"https://junglewise.ai/threats/technologies/http4k-core","json_url":"https://junglewise.ai/threats/technologies/http4k-core.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/http4k-core","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":2,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":1,"last_90_days":1,"last_365_days":4},"latest":[{"cve":"CVE-2026-53659","cvss":7.5,"epss":0.0063,"slug":"cve-2026-53659-http4k-unbounded-gzip-decompression-denial-of-service","title":"http4k is a functional toolkit for Kotlin HTTP applications. Prior to 4.51.0.0, 5.42.0.0, and 6.49.0.0, ServerFilters.GZip, RequestFilters.G","severity":"high","exploited":false,"published_at":"2026-09-14T18:17:51.61+00:00","url":"https://junglewise.ai/threats/cve-2026-53659-http4k-unbounded-gzip-decompression-denial-of-service"},{"cvss":6.9,"slug":"http4k-information-exposure-via-improper-cookie-scoping-in-24a5c491","title":"http4k information exposure via improper cookie scoping in BasicCookieStorage","severity":"medium","exploited":false,"published_at":"2026-06-19T21:16:07+00:00","url":"https://junglewise.ai/threats/http4k-information-exposure-via-improper-cookie-scoping-in-24a5c491"},{"cvss":8.2,"slug":"http4k-misleading-hmacsha256-hash-naming-leads-to-unkeyed-digest-usage-d5026b8c","title":"http4k misleading HmacSha256.hash naming leads to unkeyed digest usage","severity":"high","exploited":false,"published_at":"2026-06-19T21:16:03+00:00","url":"https://junglewise.ai/threats/http4k-misleading-hmacsha256-hash-naming-leads-to-unkeyed-digest-usage-d5026b8c"},{"cvss":6.3,"slug":"http4k-auth-bypass-via-loose-host-matching-in-reverseproxy-bcd046a3","title":"http4k auth bypass via loose Host matching in reverseProxy","severity":"medium","exploited":false,"published_at":"2026-06-19T21:15:59+00:00","url":"https://junglewise.ai/threats/http4k-auth-bypass-via-loose-host-matching-in-reverseproxy-bcd046a3"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Http4k-Core","slug":"http4k-core","vendor":{"name":"Http4k","slug":"http4k","url":"https://junglewise.ai/threats/vendors/http4k"},"aliases":[],"category":"library","description":"A lightweight Kotlin HTTP client and server library.","url":"https://junglewise.ai/threats/technologies/http4k-core"},"most_severe":[{"cvss":8.2,"slug":"http4k-misleading-hmacsha256-hash-naming-leads-to-unkeyed-digest-usage-d5026b8c","title":"http4k misleading HmacSha256.hash naming leads to unkeyed digest usage","severity":"high","exploited":false,"published_at":"2026-06-19T21:16:03+00:00","url":"https://junglewise.ai/threats/http4k-misleading-hmacsha256-hash-naming-leads-to-unkeyed-digest-usage-d5026b8c"},{"cve":"CVE-2026-53659","cvss":7.5,"epss":0.0063,"slug":"cve-2026-53659-http4k-unbounded-gzip-decompression-denial-of-service","title":"http4k is a functional toolkit for Kotlin HTTP applications. Prior to 4.51.0.0, 5.42.0.0, and 6.49.0.0, ServerFilters.GZip, RequestFilters.G","severity":"high","exploited":false,"published_at":"2026-09-14T18:17:51.61+00:00","url":"https://junglewise.ai/threats/cve-2026-53659-http4k-unbounded-gzip-decompression-denial-of-service"},{"cvss":6.9,"slug":"http4k-information-exposure-via-improper-cookie-scoping-in-24a5c491","title":"http4k information exposure via improper cookie scoping in BasicCookieStorage","severity":"medium","exploited":false,"published_at":"2026-06-19T21:16:07+00:00","url":"https://junglewise.ai/threats/http4k-information-exposure-via-improper-cookie-scoping-in-24a5c491"},{"cvss":6.3,"slug":"http4k-auth-bypass-via-loose-host-matching-in-reverseproxy-bcd046a3","title":"http4k auth bypass via loose Host matching in reverseProxy","severity":"medium","exploited":false,"published_at":"2026-06-19T21:15:59+00:00","url":"https://junglewise.ai/threats/http4k-auth-bypass-via-loose-host-matching-in-reverseproxy-bcd046a3"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}