fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

Impact The fix for CVE-2026-3635 GHSA-444r-cwp2-x5xf added a proxyFnsocket.remoteAddress, 0 guard on the X-Forwarded- reads in request.host, request.protocol, request.hostname, request.ip, and request.ips. That guard closes the IP, CIDR, and custom-function forms of trustProxy correctly because...

CVE-2026-16732

Fastify 5.8.3–5.12.0 remains vulnerable to X-Forwarded-* spoofing when trustProxy is set numerically (e.g., 1), because the CVE-2026-3635 guard predicate ignores the connecting address. This enables host injection, HTTPS-enforcement bypass, secure-cookie/CSRF-origin bypass, and cache poisoning. P...

CVE-2026-16732 fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function...

@amedia/brick-mcp (>=0.0.0-vBRAND-20260313141110, <=1.0.3), @andesite-lab/andesite-core (>=1.60.2, <=1.62.0) +340 more potentially affected by CVE-2026-3635 via fastify (>=5.0.0, <=5.8.2)

fastify NPM version =5.0.0, =0.0.0-vBRAND-20260313141110, =1.60.2, =2.0.1, =1.1.1, =0.6.2, =0.1.1, =0.1.1, =0.6.0, =0.1.1, =0.0.35, =0.0.82, =0.0.1, =0.0.6, =0.1.68, =0.1.130 and more Source cves: CVE-2026-3635 Source advisory: OSV:GHSA-444R-CWP2-X5XF...

CVE-2026-3635

creationtimestamp| type| source ---|---|--- 2026-03-23 14:08:43+00:00| seen| https://bsky.app/profile/ulisesgascon.com/post/3mhqadbkbw22i 2026-03-23 14:10:58+00:00| seen| https://bsky.app/profile/ulisesgascon.com/post/3mhqahaep2k2i 2026-03-23 16:03:12+00:00| seen|...

@amedia/brick-mcp (>=0.0.0-vBRAND-20260313141110, <=1.0.3), @andesite-lab/andesite-core (>=1.60.2, <=1.62.0) +340 more potentially affected by CVE-2026-3635 via fastify (>=5.0.0, <=5.8.2)

fastify NPM version =5.0.0, =0.0.0-vBRAND-20260313141110, =1.60.2, =2.0.1, =1.1.1, =0.6.2, =0.1.1, =0.1.1, =0.6.0, =0.1.1, =0.0.35, =0.0.82, =0.0.1, =0.0.6, =0.1.68, =0.1.130 and more Source cves: CVE-2026-3635 Source advisory: SNYK:JS-FASTIFY-15762220...