music-metadata: uncatchable process crash parsing a crafted `.dsf` (residual of GHSA-v6c2-xwv6-8xf7)

{
  "id": "1dd7550116567d4bcb3db340208616baf66cacae7b46d7ab6568747f3f5207e6",
  "url": "https://osv.dev/vulnerability/GHSA-8j4c-6x6g-rq3j",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "music-metadata: uncatchable process crash parsing a crafted `.dsf` (residual of GHSA-v6c2-xwv6-8xf7)",
    "summary": "## Summary `DsfParser.parseChunks` skips an unrecognised chunk's payload with an **un-awaited** call: ```js this.tokenizer.ignore(Number(chunkHeader.size) - ChunkHeader.len); // lib/dsf/DsfParser.js:51 — no await ``` `ChunkHeader.len` is 12. A crafted `.dsf` chunk with `id != 'fmt '` and `size` in `0..11` makes the argument negative; strtok3 (≥ 10.3.5) throws `RangeError` on a negative `ignore`. Because the call is fire-and-forget, the rejection is **detached from the `parseBuffer()` promise chain** → unhandled rejection → Node's default (≥ 15) **crashes the process** — **after** `parseBuffer()` already resolved, so a caller's `try/catch` catches nothing and is still taken down. Residual of GHSA-v6c2-xwv6-8xf7: the ASF site was fixed in 11.12.3 (size validation) and strtok3 now throws on negative `ignore`; the DSF site was never validated, and its missing `await` escalates that throw into an **uncatchable** crash. ## Root cause (`lib/dsf/DsfParser.js:34-56`) ```js while (bytesRemaining >= ChunkHeader.len) { // ChunkHeader.len = 12 const chunkHeader = await this.tokenizer.readToken(ChunkHeader); // { id, size } switch (chunkHeader.id) { case 'fmt ': { ...; return; } default: this.tokenizer.ignore(Number(chunkHeader.size) - ChunkHeader.len); break; // size<12 -> negative, no await } bytesRemaining -= chunkHeader.size; } ``` strtok3 `AbstractTokenizer.ignore` (L78-79): `if (length < 0) throw new RangeError('ignore length must be ≥ 0 bytes');` ## Steps to reproduce `repro/` — pub",
    "evidence": "osv:GHSA-8j4c-6x6g-rq3j",
    "products": [
      {
        "name": {
          "value": "music-metadata",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "11.15.0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "GHSA-8j4c-6x6g-rq3j",
      "aliases": [
        "CVE-2026-107392",
        "GHSA-8j4c-6x6g-rq3j"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "11.15.0"
                }
              ]
            }
          ],
          "package": {
            "name": "music-metadata",
            "purl": "pkg:npm/music-metadata",
            "ecosystem": "npm"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-8j4c-6x6g-rq3j/GHSA-8j4c-6x6g-rq3j.json",
            "last_known_affected_version_range": "<= 11.14.0"
          }
        }
      ],
      "modified": "2026-10-08T20:00:05.860263177Z",
      "provider": "osv",
      "references": [
        "https://github.com/Borewit/music-metadata/security/advisories/GHSA-8j4c-6x6g-rq3j",
        "https://github.com/Borewit/music-metadata/pull/2700",
        "https://github.com/Borewit/music-metadata/commit/e7fc27a96e789d41ece41fdac590fc7618274a41",
        "https://github.com/Borewit/music-metadata",
        "https://github.com/Borewit/music-metadata/releases/tag/v11.15.0"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-248",
          "CWE-400"
        ],
        "severity": "MODERATE",
        "github_reviewed": true,
        "nvd_published_at": null,
        "github_reviewed_at": "2026-10-08T19:40:45Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-107392",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 104571,
  "published_at": "2026-10-08T19:40:45+00:00"
}