{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.9.1"
                  },
                  {
                    "fixed": "0.16.2"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              },
              {
                "original_tag": "v0.16.2",
                "range": [
                  {
                    "fixed": "95739b3f34830e9e32a392b783994df5279387d9"
                  }
                ],
                "source": "REFERENCES_TAG"
              },
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "fixed": "0.16.2"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          },
          "events": [
            {
              "introduced": "f09d932f9f53a29a0eb77c33a883f33894c5abb0"
            },
            {
              "fixed": "95739b3f34830e9e32a392b783994df5279387d9"
            }
          ],
          "repo": "https://github.com/awslabs/aws-c-mqtt",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-g3x5-86mr-65p5"
  ],
  "database_specific": {
    "cna_assigner": "AMZN",
    "cwe_ids": [
      "CWE-789"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115417.json"
  },
  "details": "Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in AWS aws-c-mqtt before 0.16.2 might allow a remote actor to cause a denial of service of the client application.\n\n\n\nTo remediate this issue, users should upgrade to aws-c-mqtt 0.16.2 or later, or to an AWS Common Runtime or AWS IoT Device SDK release that bundles it.",
  "id": "CVE-2026-115417",
  "modified": "2026-10-30T02:30:39.599562790Z",
  "published": "2026-10-22T20:34:50.961Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://aws.amazon.com/security/security-bulletins/2026-147-aws/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115417.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/awslabs/aws-c-mqtt/security/advisories/GHSA-g3x5-86mr-65p5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115417"
    },
    {
      "type": "FIX",
      "url": "https://github.com/awslabs/aws-c-mqtt/releases/tag/v0.16.2"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in aws-c-mqtt"
}