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CVE-2026-107389

Status: Undergoing AnalysisMedium (6.2)—

music-metadata is a metadata parser for audio and video media files. Prior to 11.16.0, the Matroska and WebM EBML parser decodes an attacker-controlled VINT element length and uses it for string-token or Uint8Array allocation before confirming that the leaf fits within its parent or available input. Crafted WebM, MKV, or MKA inputs can cause disproportionate allocations, out-of-memory denial of service, or, for a demonstrated parseFile path on Node.js 26.7.0, an uncatchable V8 fatal abort. The exact failure mode depends on the tokenizer, parser API, and runtime, but the affected leaf-length validation flaw is shared and has availability impact only. This issue is fixed in version 11.16.0.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

AV:L/PR:N/UI:N indica acceso local sin privilegios ni interacción, pero CWE-789 (asignación descontrolada) y el mecanismo de consumo de memoria sin validación previa sugieren explotación de lógica local. El impacto es DoS por agotamiento de memoria (T1499.004) en parseo de archivos MKV/WebM; la enum

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-107389",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-107389",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-09T18:32:35.247883Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.2,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.5
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "Borewit",
          "product": "music-metadata",
          "versions": [
            {
              "status": "affected",
              "version": "< 11.16.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-08T20:17:33.190",
  "references": [
    {
      "url": "https://github.com/Borewit/music-metadata/commit/163f013364ac9fc8dd0c3987433cd065a615af58",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Borewit/music-metadata/commit/2d14dc1f7391a94235948a0b823155538f69b3df",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Borewit/music-metadata/pull/2735",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Borewit/music-metadata/releases/tag/v11.16.0",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Borewit/music-metadata/security/advisories/GHSA-5gfj-9q3v-qfp3",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Borewit/music-metadata/security/advisories/GHSA-5gfj-9q3v-qfp3",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-789"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "music-metadata is a metadata parser for audio and video media files. Prior to 11.16.0, the Matroska and WebM EBML parser decodes an attacker-controlled VINT element length and uses it for string-token or Uint8Array allocation before confirming that the leaf fits within its parent or available input. Crafted WebM, MKV, or MKA inputs can cause disproportionate allocations, out-of-memory denial of service, or, for a demonstrated parseFile path on Node.js 26.7.0, an uncatchable V8 fatal abort. The exact failure mode depends on the tokenizer, parser API, and runtime, but the affected leaf-length validation flaw is shared and has availability impact only. This issue is fixed in version 11.16.0."
    }
  ],
  "lastModified": "2026-10-09T19:16:41.583",
  "sourceIdentifier": "security-advisories@github.com"
}