CVE-2026-109966 yt-dlp-web-ui through 4.0.0 Argument Injection via Service.Formats JSON-RPC Method

yt-dlp-web-ui through 4.0.0 contains an argument injection vulnerability that allows unauthenticated remote attackers to inject yt-dlp options by supplying a dash-prefixed url parameter to the Service.Formats JSON-RPC method. Attackers can send values like --load-info-json via /rpc/http or /rpc/w...