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/ws to make yt-dlp load attacker-chosen JSON files from the server filesystem, with contents reflected in responses.
CVE-2026-109966
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109966
yt-dlp-web-ui
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "marcopiovanello",
"product": "yt-dlp-web-ui",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "4.0.0"
}
],
"packageURL": "pkg:golang/github.com/marcopiovanello/yt-dlp-web-ui/v4",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109966
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #17399 · Revision 1
- Added to Heist Feed
- Publisher date