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 p…
Published: 2026-10-13 · CVSS: 6.9 · CVSS 4.0
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/ws to make yt-dlp load attacker-chosen JSON files from the server filesystem, with contents reflected in responses.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7