{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:fluentd:fluentd:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.19.3"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "43c860907e3d6a92c922233fd16eb2ed9ea16b69"
            },
            {
              "fixed": "f5f2b7cddf8aab3932e6dec9fa367a5f3eb27e10"
            }
          ],
          "repo": "https://github.com/fluent/fluentd",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-j9cw-hwqf-85w7"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-409"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44160.json"
  },
  "details": "Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. Prior to 1.19.3, Fluentd's in_http and in_forward plugins support gzip-compressed data but enforce limits only on compressed payloads through settings such as body_size_limit and chunk_size_limit, allowing crafted compressed payloads to decompress in memory to an excessive size and cause denial of service through memory exhaustion. This issue is fixed in version 1.19.3.",
  "id": "CVE-2026-44160",
  "modified": "2026-07-16T03:31:13.316941144Z",
  "published": "2026-07-08T21:24:28.346Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/fluent/fluentd/releases/tag/v1.19.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44160.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/fluent/fluentd/security/advisories/GHSA-j9cw-hwqf-85w7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44160"
    },
    {
      "type": "FIX",
      "url": "https://github.com/fluent/fluentd/commit/f5f2b7cddf8aab3932e6dec9fa367a5f3eb27e10"
    },
    {
      "type": "FIX",
      "url": "https://github.com/fluent/fluentd/pull/5393"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Fluentd: Denial of Service (DoS) via Gzip Decompression Bomb in `in_http` and `in_forward`"
}