CVE-2026-109967
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductMarcopiovanello Yt-dlp-web-ui
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-476NULL pointer dereference
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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