Parsson DoS when parsing numbers from untrusted sources

{
  "id": "a0f6d55db1709ee914c5c450b006164e5761d1ebae32c0727b66ecf5a35a6a53",
  "url": "https://osv.dev/vulnerability/CVE-2023-4043",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Parsson DoS when parsing numbers from untrusted sources",
    "summary": "In Eclipse Parsson before versions 1.1.4 and 1.0.5, Parsing JSON from untrusted sources can lead malicious actors to exploit the fact that the built-in support for parsing numbers with large scale in Java has a number of edge cases where the input text of a number can lead to much larger processing time than one would expect. To mitigate the risk, parsson put in place a size limit for the numbers as well as their scale.",
    "evidence": "osv:CVE-2023-4043",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-4043",
      "aliases": [
        "CVE-2023-4043",
        "GHSA-g8p6-p27c-52fx"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/eclipse-ee4j/parsson",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "63b1d7393c539921853db1ddc0d92882c5931ae1"
                },
                {
                  "introduced": "3266a62f65744415771ea94ec897e6dd51160a3c"
                },
                {
                  "fixed": "675484c73328fb5c559ee15ff496f6618c007d9e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:eclipse:parsson:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.0.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:eclipse:parsson:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.1.0"
                      },
                      {
                        "fixed": "1.1.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4043.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.399545562Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4043.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-4043",
        "https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/13",
        "https://github.com/eclipse-ee4j/parsson/pull/100"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-20",
          "CWE-834"
        ],
        "cna_assigner": "eclipse",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4043.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-4043",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 500349,
  "published_at": "2023-11-03T08:11:39.563+00:00"
}