Medium
music-metadata: EBML parser trusts element lengths, allowing memory exhaustion or process abort
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-107389
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 01:59 UTC · Revision 1
Source evidence
music-metadata: EBML parser trusts element lengths, allowing memory exhaustion or process abort
core-osv · Original sourcePublished 8 Oct 2026, 19:05 UTC
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.
osv:CVE-2026-107389
Complete source record
{
"id": "4b2254881ae72222794de2bd6e3d426709312ac6193df3c19dc8e4d1225ca18e",
"url": "https://osv.dev/vulnerability/CVE-2026-107389",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "music-metadata: EBML parser trusts element lengths, allowing memory exhaustion or process abort",
"summary": "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.",
"evidence": "osv:CVE-2026-107389",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-107389",
"aliases": [
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"GHSA-5gfj-9q3v-qfp3"
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"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
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{
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],
"modified": "2026-10-28T02:30:41.107131973Z",
"provider": "osv",
"references": [
"https://github.com/Borewit/music-metadata/releases/tag/v11.16.0",
"https://github.com/Borewit/music-metadata/security/advisories/GHSA-5gfj-9q3v-qfp3",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107389.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-107389",
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107389.json"
}
},
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"evidence": "/id"
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},
"source_id": "core-osv",
"document_id": 509078,
"published_at": "2026-10-08T19:05:23.816+00:00"
}