Caddy: Unsafe Unicode Handling in FastCGI splitPos Allows Execution of Non-PHP Files

Summary The FastCGI transport's splitPos in modules/caddyhttp/reverseproxy/fastcgi/fastcgi.go misuses golang.org/x/text/search with search.IgnoreCase when the request path contains a non-ASCII byte. Two distinct flaws in that fallback let an attacker mislead Caddy's FastCGI splitting into treatin...

PT-2026-41687

Name of the Vulnerable Software and Affected Versions Caddy versions 2.7.0 through 2.11.2 Description The FastCGI transport's splitPos function in modules/caddyhttp/reverseproxy/fastcgi/fastcgi.go misuses the search.IgnoreCase feature of the golang.org/x/text/search library when a request path...