{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.16.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "cff5fbffb498a60e0fb700f77073deeebb7ed3e6"
            }
          ],
          "repo": "https://github.com/dtstack/chunjun",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "GovTech CSG",
    "cwe_ids": [
      "CWE-502"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4735.json"
  },
  "details": "Deserialization of Untrusted Data vulnerability in DTStack chunjun (‎chunjun-core/src/main/java/com/dtstack/chunjun/util modules). This vulnerability is associated with program files GsonUtil.Java.\n\nThis issue affects chunjun: before 1.16.1.",
  "id": "CVE-2026-4735",
  "modified": "2026-08-12T03:51:15.097504569Z",
  "published": "2026-03-24T03:08:18.156Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4735.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4735"
    },
    {
      "type": "FIX",
      "url": "https://github.com/DTStack/chunjun/pull/1939"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/DTStack/chunjun"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Amber",
      "type": "CVSS_V4"
    }
  ],
  "summary": "A stack overflow and DoS vulnerability in DTStack/chunjun"
}