CVE-2026-84292: Improper Encoding or Escaping of Output

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 inject authority delimiters, demoting the intended host t...

CVE-2026-59882

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3, Uri::assertValidHost does not reject URI host components containing authority delimiters, embedded ports, or malformed IPv6 brackets, allowing Uri::getHost to disagree with the URI authority used for security ...

guzzlehttp/psr7 has Host Confusion via Authority Reinterpretation

Impact guzzlehttp/psr7 improperly interpreted malformed Host header values when constructing request URIs from inbound request data. This issue concerns inbound request parsing and server request construction. It does not require serializing a PSR-7 request, and it is not part of the normal...

NPM: fast-uri vulnerable to host confusion via percent-encoded authority delimiters

NPM: fast-uri vulnerable to host confusion via percent-encoded authority delimiters vulnerability discovered by ? in WordPress Npm fast-uri versions = 3.1.1...

GHSA-V39H-62P7-JPJC fast-uri vulnerable to host confusion via percent-encoded authority delimiters

Impact fast-uri v3.1.1 and earlier decodes percent-encoded authority delimiters %40 as @, %3A as : inside the host component and serializes them back as raw characters. This changes the URI structure, turning a hostname into userinfo plus a different host. For example,...

UBUNTU-CVE-2026-6322

fast-uri normalize decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator...

CVE-2026-6322

fast-uri normalize decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator...

CVE-2026-6322

fast-uri normalize decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator...

CVE-2026-6322

fast-uri normalize decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator...

PT-2026-36996

Name of the Vulnerable Software and Affected Versions fast-uri versions prior to 3.1.2 Description The normalize function decoded percent-encoded authority delimiters within the host component and re-emitted them as raw delimiters during serialization. This allows a host combining an allowed...

CVE-2026-6322: Interpretation Conflict

fast-uri normalize decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator...