CVE-2026-9803 Keycloak: keycloak: denial of service via malformed authorization header

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an...

CVE-2026-9803

CVE-2026-9803 describes a denial-of-service flaw in Keycloak’s ClientRegistrationAuth component. A remote, unauthenticated attacker can trigger an ArrayIndexOutOfBoundsException by sending a specially crafted POST request with a malformed Authorization: Bearer header to any client registration en...

EUVD-2020-5127

Malware in sbrugna...

CVE-2020-12845

Cherokee 0.4.27 to 1.2.104 is affected by a denial of service due to a NULL pointer dereferences. A remote unauthenticated attacker can crash the server by sending an HTTP request to protected resources using a malformed Authorization header that is mishandled during a cherokeebufferadd call with...