Description
yt-dlp-web-ui through 4.0.0 contains a NULL pointer dereference vulnerability in the Service.Formats JSON-RPC method that allows remote unauthenticated attackers to crash the server. Attackers can send a single request with a url value like --version, causing invalid yt-dlp JSON output and an unrecovered panic that terminates the process.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| marcopiovanello | yt-dlp-web-ui | ≤ 4.0.0 | — |
References
- https://github.com/vazzzy071-crypto/security-advisories/blob/main/advisories/2026-10-marcopiovanello-yt-dlp-web-ui-rpc-arg-injection.md third-party-advisory exploit
- https://github.com/marcopiovanello/yt-dlp-web-ui/blob/v4.0.0/server/rpc/service.go technical-description
- https://github.com/marcopiovanello/yt-dlp-web-ui/blob/v4.0.0/server/formats/parser.go technical-description
- https://github.com/marcopiovanello/yt-dlp-web-ui product
- VulnCheck Advisory: yt-dlp-web-ui through 4.0.0 NULL Pointer Dereference DoS via Service.Formats third-party-advisory