NPM: fast-uri vulnerable to inconsistent host case normalization via percent-encoded octets

NPM: fast-uri vulnerable to inconsistent host case normalization via percent-encoded octets vulnerability discovered by ? in WordPress Npm fast-uri versions 2.4.7...

fast-uri vulnerable to inconsistent host case normalization via percent-encoded octets

Impact fast-uri folds the host to lowercase before it percent-decodes the host, so a percent-encoded uppercase unreserved octet such as %41 decodes to a literal A that is never folded. For a scheme-relative reference //host there is no scheme, so the host canonicalization that repairs this on a...

CVE-2026-86472 fast-uri vulnerable to inconsistent host case normalization via percent-encoded octets

fast-uri is a dependency-free RFC 3986 URI parser for Node.js, used by Fastify and ajv. In versions before 2.4.7, from 3.0.0 through 3.1.7, and from 4.0.0 through 4.1.4, fast-uri folds the host to lowercase before it percent-decodes the host, so a percent-encoded uppercase octet such as %41 decod...

CVE-2026-86472 fast-uri vulnerable to inconsistent host case normalization via percent-encoded octets

fast-uri is a dependency-free RFC 3986 URI parser for Node.js, used by Fastify and ajv. In versions before 2.4.7, from 3.0.0 through 3.1.7, and from 4.0.0 through 4.1.4, fast-uri folds the host to lowercase before it percent-decodes the host, so a percent-encoded uppercase octet such as %41 decod...