{"vulnerability": "CVE-2026-16117", "sightings": [{"uuid": "ce75dd00-e85b-4b6c-9e40-9aaded8a8b9a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-16117", "type": "seen", "source": "https://bsky.app/profile/ulisesgascon.com/post/3mqwdtonr6k25", "content": "\ud83d\udea8 Critical-severity security fix in @fastify/http-proxy@11.6.0 just released!\n\nPatches CVE-2026-16117, prefix escape via URL-encoded characters.\n\ngithub.com/fastify/fast...", "creation_timestamp": "2026-07-18T13:14:19.329102Z"}, {"uuid": "8fc0b403-866a-484b-8ba0-c0ac41265371", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-16117", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mqwifxu7mz2z", "content": "CVE-2026-16117\nAn attacker can access internal or administrative paths on a server protected by a Fastify HTTP proxy if the proxy is configured to rewrite a URL prefix that contains encoded characters. To fix this, update the\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#CVE #infosec", "creation_timestamp": "2026-07-18T14:36:06.980106Z"}, {"uuid": "476efe1b-2f17-4b7f-a4b0-a276b56ac3e3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-16117", "type": "seen", "source": "https://bsky.app/profile/thehackerwire.bsky.social/post/3mqwjs2tc2423", "content": "\ud83d\udd34 CVE-2026-16117 - Critical (10)\n\nImpact: @fastify/http-proxy versions up to and including 11.5.0 fail to rewrite the request prefi...\n\nhttps://www.thehackerwire.com/vulnerability/CVE-2026-16117/\n\n#infosec #cybersecurity #CVE #vulnerability #security #patchstack", "creation_timestamp": "2026-07-18T15:00:46.483731Z"}, {"uuid": "ead615b0-0ce0-4f0e-86d4-322a2a69495c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-16117", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mqwo7jkg272s", "content": "CVE-2026-16117 - @fastify/http-proxy vulnerable to prefix escape via URL-encoded characters\nCVE ID : CVE-2026-16117\n \n Published : July 18, 2026, 2:17 p.m. | 1\u00a0hour, 23\u00a0minutes ago\n \n Description : Impact: @fastify/http-proxy versions up to and including 11.5.0 fail to rewrite...", "creation_timestamp": "2026-07-18T16:19:52.683702Z"}, {"uuid": "a3d6d6c9-c86e-4f62-8788-065a3a45fe09", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-16117", "type": "seen", "source": "https://bsky.app/profile/suriq.io/post/3mqwx274akf2i", "content": "\u26a0\ufe0f PATCH NOW\n\nA single URL-encoded character defeats @fastify/http-proxy's prefix rewrite (CVE-2026-16117, CVSS 10).\n\nThe internal and admin endpoints the proxy was hiding become reachable upstream. No workaround. Patch to 11.6.0.", "creation_timestamp": "2026-07-18T18:57:58.216671Z"}]}