{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.7.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "191cb3a44e77f1afab439ee636bf66bdf3c54a04"
            },
            {
              "fixed": "6219666641f9408498f85868f835e17bd8a72fed"
            },
            {
              "fixed": "93ac93e9c992c11b4c03d5455d8551f9fb24da1b"
            },
            {
              "fixed": "f6ace7e0db715de1a8c4618bed9378333a5c2214"
            },
            {
              "fixed": "29dfc7e761e1430b18a7e813ee37b73e2908ab64"
            }
          ],
          "repo": "https://github.com/typelevel/jawn",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-cc4v-rvgp-2pf3"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59990.json"
  },
  "details": "Jawn is an open source JSON parser. Prior to 1.7.0, Jawn parse methods accept arbitrarily deep JSON array and object nesting without a depth limit, allowing a remote attacker who can submit untrusted JSON to grow parser contexts until the JVM heap is exhausted. The resulting java.lang.OutOfMemoryError is a fatal Scala error that is not ordinarily handled by scala.util.Try or cats.effect.IO, causing denial of service. This issue is fixed in version 1.7.0.",
  "id": "CVE-2026-59990",
  "modified": "2026-09-25T03:30:24.007715733Z",
  "published": "2026-09-23T18:41:12.073Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/typelevel/jawn/releases/tag/v1.7.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59990.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/typelevel/jawn/security/advisories/GHSA-cc4v-rvgp-2pf3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59990"
    },
    {
      "type": "FIX",
      "url": "https://github.com/typelevel/jawn/commit/191cb3a44e77f1afab439ee636bf66bdf3c54a04"
    },
    {
      "type": "FIX",
      "url": "https://github.com/typelevel/jawn/commit/6219666641f9408498f85868f835e17bd8a72fed"
    },
    {
      "type": "FIX",
      "url": "https://github.com/typelevel/jawn/commit/93ac93e9c992c11b4c03d5455d8551f9fb24da1b"
    },
    {
      "type": "FIX",
      "url": "https://github.com/typelevel/jawn/commit/f6ace7e0db715de1a8c4618bed9378333a5c2214"
    }
  ],
  "schema_version": "1.9.0",
  "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": "Jawn: Uncontrolled nesting depth in JSON parser"
}