{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1afe509677c51b320041b7a2c177366d4a4deb55"
            }
          ],
          "repo": "https://github.com/micronaut-projects/micronaut-core",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "df467a445d6bc1951261f8176d16e2fdb7664a73"
            }
          ],
          "repo": "https://github.com/micronaut-projects/micronaut-core",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ce658f16c2aee3b1ceddcc50d0e10bdcbb9177ff"
            }
          ],
          "repo": "https://github.com/micronaut-projects/micronaut-core",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-43w5-mmxv-cpvh"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-835"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33013.json"
  },
  "details": "Micronaut Framework is a JVM-based full stack Java framework designed for building modular, easily testable JVM applications. Versions prior to both 4.10.16 and 3.10.5 do not correctly handle descending array index order during form-urlencoded body binding in theJsonBeanPropertyBinder::expandArrayToThreshold, which allows remote attackers to cause a DoS (non-terminating loop, CPU exhaustion, and OutOfMemoryError) via crafted indexed form parameters (e.g., authors[1].name followed by authors[0].name). This issue has been fixed in versions 4.10.16 and 3.10.5.",
  "id": "CVE-2026-33013",
  "modified": "2026-04-01T23:10:39.746076479Z",
  "published": "2026-03-20T04:47:42.768Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/micronaut-projects/micronaut-core/releases/tag/v3.10.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/micronaut-projects/micronaut-core/releases/tag/v4.10.16"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33013.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/micronaut-projects/micronaut-core/security/advisories/GHSA-43w5-mmxv-cpvh"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33013"
    },
    {
      "type": "FIX",
      "url": "https://github.com/micronaut-projects/micronaut-core/commit/1afe509677c51b320041b7a2c177366d4a4deb55"
    },
    {
      "type": "FIX",
      "url": "https://github.com/micronaut-projects/micronaut-core/pull/12410"
    }
  ],
  "schema_version": "1.7.3",
  "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": "Micronaut vulnerable to DoS via crafted form-urlencoded body binding with descending array indices"
}