CVE-2026-1965: Authentication Bypass by Primary Weakness

libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of...

Information Disclosure

guzzlehttp/guzzle is vulnerable to information disclosure. The vulnerability exists because the checkRedirect function of RedirectMiddleware.php does not properly clear the CURLOPTHTTPAUTH option on a change of origin, allowing an attacker to get sensitive information through the Authorization...

CVE-2022-31090

Guzzle, an extensible PHP HTTP client. Authorization headers on requests are sensitive information. In affected versions when using our Curl handler, it is possible to use the CURLOPTHTTPAUTH option to specify an Authorization header. On making a request which responds with a redirect to a URI wi...

CURLOPT_HTTPAUTH option not cleared on change of origin

Impact Authorization headers on requests are sensitive information. When using our Curl handler, it is possible to use the CURLOPTHTTPAUTH option to specify an Authorization header. On making a request which responds with a redirect to a URI with a different origin, if we choose to follow it, we...