GHSA-34XG-WGJX-8XPH 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...

guzzlehttp/psr7 has CRLF Injection via URI Host Component

Impact guzzlehttp/psr7 did not reject ASCII control characters, whitespace, or DEL in first-party URI host components. The issue requires a PSR-7 request to be serialized into a raw HTTP/1.x message, for example with GuzzleHttp\Psr7\Message::toString or an equivalent custom serializer. Creating a...

CVE-2026-49214 guzzlehttp/psr7 has CRLF Injection via URI Host Component

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 did not reject ASCII control characters, whitespace, or DEL in first-party URI host components. A vulnerable flow is: First, an application accepts a user-controlled URL. Second, the URL is used to...

CVE-2026-48998 guzzlehttp/psr7 has Host Confusion via Authority Reinterpretation

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 contain improper Host header validation when parsing raw HTTP request messages and when deriving a server request URI from server variables. An attacker can provide a malformed Host header containing U...

CVE-2024-21631 Integer overflow in URI leading to potential host spoofing

Vapor is an HTTP web framework for Swift. Prior to version 4.90.0, Vapor's vaporurlparserparse function uses uint16t indexes when parsing a URI's components, which may cause integer overflows when parsing untrusted inputs. This vulnerability does not affect Vapor directly but could impact...

The vulnerability of the Firefox browser, which allows a remote attacker to bypass certificate verification

The vulnerability of the Firefox browser in handling alternative HTTP services allows a malicious actor to bypass the X.509 certificate verification for SSL servers by modifying the server address in the uri-host header of the HTTP/2 response...

Mozilla Firefox Man-in-the-Middle Attack Vulnerability

Mozilla Firefox is a web browser developed by the Mozilla Foundation in conjunction with the open source community. A security vulnerability in the Mozilla Firefox HTTP Alternative Services feature allows attackers to bypass SSL services and conduct man-in-the-middle attacks by specifying a...