GO-2026-5346

vendorUSosv

Caddy: FastCGI header normalization bypass in forward_auth copy_headers in github.com/caddyserver/caddy

view advisory published 2026-07-24Licence: per source

Caddy: FastCGI header normalization bypass in forward_auth copy_headers in github.com/caddyserver/caddy

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-52845US——
Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, forward_auth copy_headers deletes the exact client-supplied identity header before copying the tru…
02

references

External citations — patches, advisories, analysis.

scry

Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.

Free scan