CVE-2026-35051: Forwardauth Missing X Forwarded Stripcve-2026-35051-forwardauth-missing-x-forwarded-strip
ForwardAuth-style request builder calls utils.CopyHeaders to bulk-copy every incoming request header into the forwarded auth request and then only selectively rebuilds a fixed subset of X-Forwarded-* headers (For / Method / Proto / Port / Host / Uri). Other X-Forwarded-* headers such as X-Forwarded-Prefix are not stripped, so when the trust-forward flag is f
