osv-2026-650
Vulnerability from osv_ossfuzz
Published
2026-04-29 00:19
Modified
2026-04-29 14:32
Summary
Use-of-uninitialized-value in Mat_int32Swap
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=506942183

Crash type: Use-of-uninitialized-value
Crash state:
Mat_int32Swap
ReadCompressedInt32Data
Mat_VarRead5
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "5df1d83e0f81b8e82073d34302c7714ea3a8eeb0:2f89a7e9ebe198f16b62048dd02cd6de5dc47573"
      },
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "matio",
        "purl": "pkg:generic/matio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "95ef616e596c15a72abed28ab0b3f6b72bd6e691"
            },
            {
              "fixed": "a3e837350f28232a3a16e901d989049b6866a0bc"
            },
            {
              "fixed": "2f89a7e9ebe198f16b62048dd02cd6de5dc47573"
            }
          ],
          "repo": "https://github.com/tbeu/matio.git",
          "type": "GIT"
        }
      ],
      "versions": [
        "v1.5.30"
      ]
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=506942183\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\nMat_int32Swap\nReadCompressedInt32Data\nMat_VarRead5\n```\n",
  "id": "OSV-2026-650",
  "modified": "2026-04-29T14:32:22.076704Z",
  "published": "2026-04-29T00:19:17.230021Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=506942183"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "Use-of-uninitialized-value in Mat_int32Swap"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.