osv-2026-512
Vulnerability from osv_ossfuzz
Published
2026-04-03 00:07
Modified
2026-04-03 00:07
Summary
Heap-buffer-overflow in g_utf8_get_char
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=498475244

Crash type: Heap-buffer-overflow READ 1
Crash state:
g_utf8_get_char
g_markup_escape_text
fuzz_markup_escape_text.c
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "876b9fa5de8ec4726a4e7f133bf355c3d217b450:5821ef69f2e351b965226ef9d0d9c74742d44d83",
        "introduced_range": "2a3ca7506ac4872a9eb210be00c2dd4386561db2:28070b88d88f5846d6dfa6651e3253e7ff63c9ea"
      },
      "ecosystem_specific": {
        "severity": "HIGH"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "glib",
        "purl": "pkg:generic/glib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "75768ba48243f01e9913b0ba46196c9c0e3c8d9d"
            },
            {
              "fixed": "0ac0a2a417e75cfe9cdba6ce393b890d793b4b95"
            },
            {
              "fixed": "5821ef69f2e351b965226ef9d0d9c74742d44d83"
            }
          ],
          "repo": "https://gitlab.gnome.org/GNOME/glib",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=498475244\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\ng_utf8_get_char\ng_markup_escape_text\nfuzz_markup_escape_text.c\n```\n",
  "id": "OSV-2026-512",
  "modified": "2026-04-03T00:07:59.708039Z",
  "published": "2026-04-03T00:07:59.707776Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=498475244"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "Heap-buffer-overflow in g_utf8_get_char"
}


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