CVE-2026-109966 (GCVE-0-2026-109966)

Vulnerability from cvelistv5 – Published: 2026-10-13 14:00 – Updated: 2026-10-13 14:00 Unsupported When Assigned
VLAI
Title
yt-dlp-web-ui through 4.0.0 Argument Injection via Service.Formats JSON-RPC Method
Summary
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.
CWE
  • CWE-88 - Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6057 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
marcopiovanello yt-dlp-web-ui Affected: 0 , ≤ 4.0.0 (semver)
guessed Create a notification for this product.
Date Public
2026-10-13 00:00
Show details on NVD website

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          "product": "yt-dlp-web-ui",
          "vendor": "marcopiovanello",
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
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      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Miraziz Kuchkarov (VOID)"
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        }
      ],
      "metrics": [
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            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "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",
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              "description": "Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
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              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-13T14:00:17.990Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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        },
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          "url": "https://github.com/marcopiovanello/yt-dlp-web-ui/blob/v4.0.0/server/formats/parser.go"
        },
        {
          "tags": [
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          "url": "https://github.com/marcopiovanello/yt-dlp-web-ui"
        },
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          "url": "https://www.vulncheck.com/advisories/yt-dlp-web-ui-through-4.0.0-argument-injection-via-service-formats-json-rpc-method"
        }
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  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-109966",
    "datePublished": "2026-10-13T14:00:17.990Z",
    "dateReserved": "2026-10-13T11:26:13.465Z",
    "dateUpdated": "2026-10-13T14:00:17.990Z",
    "state": "PUBLISHED"
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                "packageURL": "pkg:golang/github.com/marcopiovanello/yt-dlp-web-ui/v4",
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          }
        ],
        "id": "CVE-2026-109966",
        "lastModified": "2026-10-13T14:17:36.217",
        "metrics": {
          "cvssMetricV31": [
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                "Recovery": "NOT_DEFINED",
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                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
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                "valueDensity": "NOT_DEFINED",
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                "version": "4.0",
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                "vulnIntegrityImpact": "NONE",
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            "url": "https://github.com/marcopiovanello/yt-dlp-web-ui"
          },
          {
            "source": "disclosure@vulncheck.com",
            "url": "https://github.com/marcopiovanello/yt-dlp-web-ui/blob/v4.0.0/server/formats/parser.go"
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}



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