fast-uri vulnerable to host confusion via percent-encoded scheme normalization

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-76172 · Microsoft / collected KEV context

EUVD-2026-64773

GHSA-jqff-g426-hqxp

cve-program · CVE-2026-76172

• https://github.com/fastify/fast-uri/security/advisories/GHSA-jqff-g426-hqxp
• https://cna.openjsf.org/security-advisories.html

euvd · EUVD-2026-64773

• https://github.com/fastify/fast-uri/security/advisories/GHSA-jqff-g426-hqxp
• https://cna.openjsf.org/security-advisories.html

nvd · CVE-2026-76172

• https://cna.openjsf.org/security-advisories.html
• https://github.com/fastify/fast-uri/security/advisories/GHSA-jqff-g426-hqxp

osv · GHSA-jqff-g426-hqxp

• https://github.com/fastify/fast-uri/security/advisories/GHSA-jqff-g426-hqxp
• https://nvd.nist.gov/vuln/detail/CVE-2026-76172
• https://github.com/fastify/fast-uri/commit/37f3417c82994279656854f83ce938acd81c3862
• https://github.com/fastify/fast-uri/commit/a941e626411f576f8d90883231e57b6c9d0ff98b
• https://github.com/fastify/fast-uri/commit/c6a74bfd9d8c6b0df5362b3c7ae88d8021cb1e39
• https://cna.openjsf.org/security-advisories.html
• https://github.com/fastify/fast-uri
• https://github.com/fastify/fast-uri/releases/tag/v2.4.5
• https://github.com/fastify/fast-uri/releases/tag/v3.1.6
• https://github.com/fastify/fast-uri/releases/tag/v4.1.3

• fast-uri is a URI parser for Node.js. During parsing it runs a legacy decoding pass over the scheme component and never re-escapes the result, and serialization writes the scheme back out verbatim, unlike the host component which is re-esca… · Advisory content revised · 9 Nov 2026
• fast-uri is a URI parser for Node.js. During parsing it runs a legacy decoding pass over the scheme component and never re-escapes the result, and serialization writes the scheme back out verbatim, unlike the host component which is re-esca… · Advisory content revised · 7 Nov 2026
• fast-uri is a URI parser for Node.js. During parsing it runs a legacy decoding pass over the scheme component and never re-escapes the result, and serialization writes the scheme back out verbatim, unlike the host component which is re-esca… · Advisory content revised · 5 Nov 2026
• fast-uri is a URI parser for Node.js. During parsing it runs a legacy decoding pass over the scheme component and never re-escapes the result, and serialization writes the scheme back out verbatim, unlike the host component which is re-esca… · Advisory content revised · 1 Nov 2026
• Jira Software Data Center: SSRF (Server-Side Request Forgery) fast-uri Dependency (CVE-2026-76172) · Security advisory · 15 Sep 2026