GHSA-v6c2-xwv6-8xf7

Source

https://github.com/advisories/GHSA-v6c2-xwv6-8xf7

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-v6c2-xwv6-8xf7/GHSA-v6c2-xwv6-8xf7.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-v6c2-xwv6-8xf7

Aliases

CVE-2026-32256

Downstream

MINI-4pmg-2rrh-997j

Published

2026-03-17T20:04:48Z

Modified

2026-03-19T21:16:28.989979Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

music-metadata has an infinite loop vulnerability in ASF parser

Details

Summary

music-metadata's ASF parser (parseExtensionObject() in lib/asf/AsfParser.ts:112-158) enters an infinite loop when a sub-object inside the ASF Header Extension Object has objectSize = 0.

Root Cause

When objectSize is 0: 1. remaining = 0 - 24 = -24 2. tokenizer.ignore(-24) moves the read position backward by 24 bytes 3. extensionSize -= 0 (loop counter never decreases) 4. while (extensionSize > 0) never exits 5. The same 24-byte header is re-read infinitely

This is the same pattern as CVE-2026-31808 (GHSA-5v7r-6r5c-r473) in file-type — strtok3's AbstractTokenizer.ignore() accepts negative values without validation.

Affected Methods

parseFile() — HANGS (FileTokenizer inherits vulnerable ignore())
parseBuffer() — HANGS (BufferTokenizer inherits vulnerable ignore())
parseStream() — NOT affected (ReadStreamTokenizer has own ignore() that throws RangeError)

Impact

A 100-byte crafted .asf file permanently hangs any application using parseFile() or parseBuffer(). music-metadata has 2.2M weekly npm downloads.

Suggested Fix

Validate objectSize >= minimumHeaderSize before calculating the payload. Or fix strtok3's AbstractTokenizer.ignore() to reject negative values.

Database specific

{
    "github_reviewed_at": "2026-03-17T20:04:48Z",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-835"
    ],
    "nvd_published_at": "2026-03-18T04:17:25Z",
    "severity": "HIGH"
}

References

Affected packages

npm / music-metadata

Package

Name: music-metadata; View open source insights on deps.dev
Purl: pkg:npm/music-metadata

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

11.12.3

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-v6c2-xwv6-8xf7/GHSA-v6c2-xwv6-8xf7.json"

last_known_affected_version_range

"<= 11.12.1"