osv-2026-455
Vulnerability from osv_ossfuzz
Published
2026-03-25 00:20
Modified
2026-03-25 00:20
Summary
UNKNOWN READ in mkv::matroska_segment_c::TrackInit
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=495498906

Crash type: UNKNOWN READ
Crash state:
mkv::matroska_segment_c::TrackInit
mkv::matroska_segment_c::TrackInit
mkv::matroska_segment_c::ParseTrackEntry
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "d854b1239b697859d6b21206feb7c66d64f3737a:643b5a278f40a899d0c981499da70a0721e1dff5",
        "introduced_range": "22ea21dc9efff3e1ce539a098e4839975051bbe5:ca8a1dd2e9f38ae5d0ecae43be473d3a9af6a399"
      },
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "vlc",
        "purl": "pkg:generic/vlc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "f8e9d090fc20452cfddb91df28bf235eb59baff1"
            },
            {
              "fixed": "643b5a278f40a899d0c981499da70a0721e1dff5"
            }
          ],
          "repo": "https://code.videolan.org/videolan/vlc.git",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=495498906\n\n```\nCrash type: UNKNOWN READ\nCrash state:\nmkv::matroska_segment_c::TrackInit\nmkv::matroska_segment_c::TrackInit\nmkv::matroska_segment_c::ParseTrackEntry\n```\n",
  "id": "OSV-2026-455",
  "modified": "2026-03-25T00:20:51.449185Z",
  "published": "2026-03-25T00:20:51.448743Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=495498906"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "UNKNOWN READ in mkv::matroska_segment_c::TrackInit"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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