{"schema_version":1,"title":"Fastify Reply-From vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Fastify Reply-From: 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-2026-16158, was published on 18 July 2026.","url":"https://junglewise.ai/threats/technologies/reply-from","json_url":"https://junglewise.ai/threats/technologies/reply-from.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/reply-from","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":0,"last_90_days":1,"last_365_days":3},"latest":[{"cve":"CVE-2026-16158","cvss":8.7,"slug":"cve-2026-16158-fastify-fastify-reply-from-cross-upstream-request-routing-via","title":"Fastify @fastify/reply-from cross-upstream request routing via cache collision","severity":"high","exploited":false,"published_at":"2026-07-18T13:17:06.03+00:00","url":"https://junglewise.ai/threats/cve-2026-16158-fastify-fastify-reply-from-cross-upstream-request-routing-via"},{"cve":"CVE-2026-33805","cvss":8.6,"epss":0.0056,"slug":"cve-2026-33805-fastify-proxy-components-header-stripping-via-connection-header","title":"Fastify proxy components header stripping via Connection header abuse","severity":"high","exploited":false,"published_at":"2026-04-15T11:16:34.99+00:00","url":"https://junglewise.ai/threats/cve-2026-33805-fastify-proxy-components-header-stripping-via-connection-header"},{"cve":"CVE-2025-66415","cvss":4,"epss":0.0018,"slug":"cve-2025-66415-fastify-fastify-reply-from-reply-forwarding-bypass","title":"Fastify reply-from route bypass using path traversal","severity":"medium","exploited":false,"published_at":"2025-12-02T00:38:57+00:00","url":"https://junglewise.ai/threats/cve-2025-66415-fastify-fastify-reply-from-reply-forwarding-bypass"},{"cve":"CVE-2023-51701","cvss":3.1,"epss":0.0048,"slug":"cve-2023-51701-fastify-reply-from-json-content-type-parsing-confusion","title":"@fastify/reply-from JSON Content-Type parsing confusion","severity":"low","exploited":false,"published_at":"2024-01-08T15:22:40+00:00","url":"https://junglewise.ai/threats/cve-2023-51701-fastify-reply-from-json-content-type-parsing-confusion"}],"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":1},{"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":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Fastify-Express","slug":"express","vulnerabilities":9,"url":"https://junglewise.ai/threats/technologies/express"},{"name":"Fastify Http-Proxy","slug":"http-proxy","vulnerabilities":6,"url":"https://junglewise.ai/threats/technologies/http-proxy"},{"name":"Fastify Middie","slug":"middie","vulnerabilities":6,"url":"https://junglewise.ai/threats/technologies/middie"},{"name":"Fastify-Static","slug":"static","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/static"},{"name":"Fastify Multipart","slug":"multipart","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/multipart"}],"technology":{"hub":true,"name":"Fastify Reply-From","slug":"reply-from","vendor":{"name":"Fastify","slug":"fastify","url":"https://junglewise.ai/threats/vendors/fastify"},"aliases":[],"category":"library","homepage":"https://fastify.dev/","repo_url":"https://github.com/fastify/fastify-reply-from","description":"A Fastify plugin to forward the current HTTP request to another server.","url":"https://junglewise.ai/threats/technologies/reply-from"},"most_severe":[{"cve":"CVE-2026-16158","cvss":8.7,"slug":"cve-2026-16158-fastify-fastify-reply-from-cross-upstream-request-routing-via","title":"Fastify @fastify/reply-from cross-upstream request routing via cache collision","severity":"high","exploited":false,"published_at":"2026-07-18T13:17:06.03+00:00","url":"https://junglewise.ai/threats/cve-2026-16158-fastify-fastify-reply-from-cross-upstream-request-routing-via"},{"cve":"CVE-2026-33805","cvss":8.6,"epss":0.0056,"slug":"cve-2026-33805-fastify-proxy-components-header-stripping-via-connection-header","title":"Fastify proxy components header stripping via Connection header abuse","severity":"high","exploited":false,"published_at":"2026-04-15T11:16:34.99+00:00","url":"https://junglewise.ai/threats/cve-2026-33805-fastify-proxy-components-header-stripping-via-connection-header"},{"cve":"CVE-2025-66415","cvss":4,"epss":0.0018,"slug":"cve-2025-66415-fastify-fastify-reply-from-reply-forwarding-bypass","title":"Fastify reply-from route bypass using path traversal","severity":"medium","exploited":false,"published_at":"2025-12-02T00:38:57+00:00","url":"https://junglewise.ai/threats/cve-2025-66415-fastify-fastify-reply-from-reply-forwarding-bypass"},{"cve":"CVE-2023-51701","cvss":3.1,"epss":0.0048,"slug":"cve-2023-51701-fastify-reply-from-json-content-type-parsing-confusion","title":"@fastify/reply-from JSON Content-Type parsing confusion","severity":"low","exploited":false,"published_at":"2024-01-08T15:22:40+00:00","url":"https://junglewise.ai/threats/cve-2023-51701-fastify-reply-from-json-content-type-parsing-confusion"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}