{"id":"CVE-2026-109966","aliases":[],"cve":{"records":[{"id":"CVE-2026-109966","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":true,"reserved":"2026-10-13T11:26:13.465Z","published":"2026-10-13T14:00:17.990Z","modified":"2026-10-26T19:41:49.314Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-13T14:00:17.990Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-26T19:41:49.314Z"}],"references":[{"url":"https://github.com/vazzzy071-crypto/security-advisories/blob/main/advisories/2026-10-marcopiovanello-yt-dlp-web-ui-rpc-arg-injection.md","tags":["third-party-advisory","exploit"],"source":"VulnCheck"},{"url":"https://github.com/marcopiovanello/yt-dlp-web-ui/blob/v4.0.0/server/formats/parser.go","tags":["technical-description"],"source":"VulnCheck"},{"url":"https://github.com/marcopiovanello/yt-dlp-web-ui","tags":["product"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/yt-dlp-web-ui-through-4.0.0-argument-injection-via-service-formats-json-rpc-method","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-88","description":"Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')","source":"VulnCheck"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-26T19:41:41.762621Z","decisions":[{"name":"Exploitation","value":"poc"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"yt-dlp-web-ui through 4.0.0 Argument Injection via Service.Formats JSON-RPC Method","titleSource":"VulnCheck","descriptionSource":"VulnCheck","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.","score":6.9,"severity":"medium","published":"2026-10-13T14:00:17.990Z","modified":"2026-10-26T19:41:49.314Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"marcopiovanello","name":"yt-dlp-web-ui","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.0.0","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/marcopiovanello/yt-dlp-web-ui/v4","packageIdentity":{"ecosystem":"Go","name":"github.com/marcopiovanello/yt-dlp-web-ui/v4"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-109966"}],"remediation":[],"references":["https://github.com/vazzzy071-crypto/security-advisories/blob/main/advisories/2026-10-marcopiovanello-yt-dlp-web-ui-rpc-arg-injection.md","https://github.com/marcopiovanello/yt-dlp-web-ui/blob/v4.0.0/server/formats/parser.go","https://github.com/marcopiovanello/yt-dlp-web-ui","https://www.vulncheck.com/advisories/yt-dlp-web-ui-through-4.0.0-argument-injection-via-service-formats-json-rpc-method"],"sources":[{"name":"CVE","id":"CVE-2026-109966","modified":"2026-10-26T19:41:49.314Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-109966"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":6.9},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3}],"sourceAffected":[],"observedAt":"2026-10-29T14:29:28.050Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T14:15:35.655Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"yt-dlp-web-ui through 4.0.0 has an argument injection vulnerability, allowing unauthenticated remote attackers to inject yt-dlp options via the Service.Formats JSON-RPC method. Attackers can load attacker-chosen JSON files from the server filesystem.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T08:44:05.065Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-109966"}]}}