Auth.js: getToken() throws an uncaught exception on malformed Bearer authorization headers

Summary The exported getToken helper next-auth/jwt and @auth/core/jwt can throw an uncaught exception when it reads a malformed Authorization: Bearer … header. When no session cookie is present, getToken URL-decodes the bearer value before validating it, and malformed percent-encoding causes the...

PT-2026-71311

Name of the Vulnerable Software and Affected Versions @auth/core versions prior to 0.41.3 next-auth versions prior to 4.24.15 next-auth versions prior to 5.0.0-beta.32 Description The getToken function in the next-auth/jwt and @auth/core/jwt modules can throw an uncaught exception when processing...

CVE-2026-9803

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...

PT-2026-44196

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw in the ClientRegistrationAuth component allows a remote unauthenticated attacker to cause a Denial of Service DoS. By sending a specially crafted POST request with a malformed...