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VuXML IDDescription
5b8d8dee-6088-11ed-8c5e-641c67a117d8varnish -- HTTP/2 Request Forgery Vulnerability

Varnish Cache Project reports:

A request forgery attack can be performed on Varnish Cache servers that have the HTTP/2 protocol turned on. An attacker may introduce characters through the HTTP/2 pseudo-headers that are invalid in the context of an HTTP/1 request line, causing the Varnish server to produce invalid HTTP/1 requests to the backend. This may in turn be used to successfully exploit vulnerabilities in a server behind the Varnish server.


Discovery 2022-11-08
Entry 2022-11-09
varnish7
< 7.2.1

varnish6
le 6.6.2

https://varnish-cache.org/security/VSV00011.html