{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "a6eed945ecf4e5a25cf82004779c6f7e4fd5c319"
            }
          ],
          "repo": "https://github.com/ValleyBell/libvgm",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111150.json"
  },
  "details": "ValleyBell libvgm through commit a6eed945 contains a heap out-of-bounds read vulnerability in the PCM data-block decompressor caused by an unbounded compression-table index. Attackers can supply a crafted .vgm file with a small type 0x7F table and wider compressed values, causing DecompressDataBlk to over-read heap memory and crash consumers.",
  "id": "CVE-2026-111150",
  "modified": "2026-10-17T02:30:58.037432506Z",
  "published": "2026-10-15T18:57:39.493Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111150.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111150"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/valleybell-libvgm-through-commit-a6eed945-heap-out-of-bounds-read-via-decompressdatablk"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ValleyBell/libvgm"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/ValleyBell/libvgm/blob/a6eed945ecf4e5a25cf82004779c6f7e4fd5c319/player/dblk_compr.c#L183-L190"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/ValleyBell/libvgm/blob/a6eed945ecf4e5a25cf82004779c6f7e4fd5c319/player/dblk_compr.c#L727-L751"
    },
    {
      "type": "EVIDENCE",
      "url": "https://hackmd.io/@haind-pwn/libvgm-pcm-compression-table-oob-read"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ValleyBell libvgm through commit a6eed945 Heap Out-of-Bounds Read via DecompressDataBlk"
}