fast-uri vulnerable to authority injection via an unvalidated port in serialize

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

CVE-2026-84292 · Microsoft / collected KEV context

EUVD-2026-70280

GHSA-qw65-cvwx-89v3

cve-program · CVE-2026-84292

• https://github.com/fastify/fast-uri/security/advisories/GHSA-qw65-cvwx-89v3
• https://cna.openjsf.org/security-advisories.html

euvd · EUVD-2026-70280

• https://github.com/fastify/fast-uri/security/advisories/GHSA-qw65-cvwx-89v3
• https://cna.openjsf.org/security-advisories.html

nvd · CVE-2026-84292

• https://cna.openjsf.org/security-advisories.html
• https://github.com/fastify/fast-uri/security/advisories/GHSA-qw65-cvwx-89v3

osv · GHSA-qw65-cvwx-89v3

• https://github.com/fastify/fast-uri/security/advisories/GHSA-qw65-cvwx-89v3
• https://nvd.nist.gov/vuln/detail/CVE-2026-84292
• https://github.com/fastify/fast-uri/commit/820e8478dd7da3d09f187bfaf35d50b71f67b8b4
• https://cna.openjsf.org/security-advisories.html
• https://github.com/fastify/fast-uri
• https://github.com/fastify/fast-uri/releases/tag/v2.4.6
• https://github.com/fastify/fast-uri/releases/tag/v3.1.7
• https://github.com/fastify/fast-uri/releases/tag/v4.1.4

• fast-uri serializes the port component of a URI without validating it. When recomposing the authority, the userinfo and host components are escaped but the port is concatenated verbatim, so a port value that is not a sequence of digits can … · Advisory content revised · 9 Nov 2026
• fast-uri serializes the port component of a URI without validating it. When recomposing the authority, the userinfo and host components are escaped but the port is concatenated verbatim, so a port value that is not a sequence of digits can … · Advisory content revised · 7 Nov 2026
• fast-uri serializes the port component of a URI without validating it. When recomposing the authority, the userinfo and host components are escaped but the port is concatenated verbatim, so a port value that is not a sequence of digits can … · Advisory content revised · 5 Nov 2026
• fast-uri serializes the port component of a URI without validating it. When recomposing the authority, the userinfo and host components are escaped but the port is concatenated verbatim, so a port value that is not a sequence of digits can … · Advisory content revised · 1 Nov 2026
• Jira Software Data Center: SSRF (Server-Side Request Forgery) fast-uri Dependency (CVE-2026-84292) · Security advisory · 20 Oct 2026