DHIS2: Unsafe Java Deserialization - Remote Code Execution (RCE)

{
  "id": "bcb64c1cad096e15f2335a188abd6b7dc6f1794cd8a688955372c666fdf8131c",
  "url": "https://osv.dev/vulnerability/CVE-2026-55083",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DHIS2: Unsafe Java Deserialization - Remote Code Execution (RCE)",
    "summary": "DHIS2 is a flexible information system for data capture, management, validation, analytics and visualization. From versions 2.42.0 to before 2.42.5.1, and from versions 2.43.0 to before 2.43.0.1, DHIS2 is vulnerable to remote code execution (RCE) via unsafe Java deserialization. This issue has been patched in versions 2.42.5.1, 2.43.0.1, and 2.44.",
    "evidence": "osv:CVE-2026-55083",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-55083",
      "aliases": [
        "CVE-2026-55083",
        "GHSA-3fr2-wvqx-cmr5"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/dhis2/dhis2-core",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4bc649ee714c0ec0e3cfeea32557252e9e22644f"
                },
                {
                  "fixed": "9d7f88a940e6e5ee766767424306fb11cb4a1f2b"
                },
                {
                  "introduced": "0c543cc7776403b5cd9345ed8bc8f82543fbefe5"
                },
                {
                  "fixed": "58a531e163ddeefed47904841240ee436b247703"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.42.0"
                      },
                      {
                        "fixed": "2.42.5.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "2.43.0"
                      },
                      {
                        "fixed": "2.43.0.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9d7f88a940e6e5ee766767424306fb11cb4a1f2b"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.42.5.1"
                  },
                  {
                    "range": [
                      {
                        "fixed": "58a531e163ddeefed47904841240ee436b247703"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.43.0.1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.43.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55083.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.626021274Z",
      "provider": "osv",
      "references": [
        "https://github.com/dhis2/dhis2-core/releases/tag/2.42.5.1",
        "https://github.com/dhis2/dhis2-core/releases/tag/2.43.0.1",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55083.json",
        "https://github.com/dhis2/dhis2-core/security/advisories/GHSA-3fr2-wvqx-cmr5",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-55083"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-502"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55083.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-55083",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507152,
  "published_at": "2026-10-01T18:00:05.332+00:00"
}