osv-2026-216
Vulnerability from osv_ossfuzz
Published
2026-02-10 00:08
Modified
2026-02-11 14:08
Summary
Heap-buffer-overflow in mg_mqtt_next_prop
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=482698892

Crash type: Heap-buffer-overflow READ 1
Crash state:
mg_mqtt_next_prop
fuzz.c
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "ba768693edf63ce452e7808ff5ccf5b92a8ccbca:cc617d537d151fcba9d5f24fc79cb523dda55a55",
        "introduced_range": "70d268d95f7f0764ff23351bf84fa3359af45eb5:ba768693edf63ce452e7808ff5ccf5b92a8ccbca"
      },
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "mongoose",
        "purl": "pkg:generic/mongoose"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "c083f204fc16284f67d0d17e63cf21f53630d58c"
            },
            {
              "fixed": "cc617d537d151fcba9d5f24fc79cb523dda55a55"
            },
            {
              "fixed": "205d4c6832fe5eb8d9642de24af8a5e327be0cbc"
            }
          ],
          "repo": "https://github.com/cesanta/mongoose",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=482698892\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\nmg_mqtt_next_prop\nfuzz.c\n```\n",
  "id": "OSV-2026-216",
  "modified": "2026-02-11T14:08:38.238200Z",
  "published": "2026-02-10T00:08:51.349946Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=482698892"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "Heap-buffer-overflow in mg_mqtt_next_prop"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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