CVE-2026-109966
Medium
Description
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductMarcopiovanello Yt-dlp-web-ui
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-88CWE-88
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| marcopiovanello yt-dlp-web-ui | v ≤ 4.0.0 | — |
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