HTTP/2 transport accepts malformed framing-related headers in net/http
En bref
Sévérité
HIGH 7.5
EPSS
EPSS 0.43 % · centile 37 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Go
Statut NVD
Awaiting Analysis
Description
Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such headers to an HTTP/1 client when acting as a reverse proxy. If the HTTP/1 client also does not behave strictly enough, this can result in response smuggling.
