CVE-2026-71554

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request...

PT-2024-19998

Name of the Vulnerable Software and Affected Versions Authentik versions prior to 2023.8.7 Authentik versions prior to 2023.10.7 Description Authentik is an open-source Identity Provider with a bug in its implementation of PKCE, allowing an attacker to circumvent the protection that PKCE offers...