Regular expression denial of service in Pydantic < 2.4.0

{
  "id": "840b790a4c6e57d5e7a16bb7e3530b2380d5d33f8df8e1e166b7a505bf3486b7",
  "url": "https://osv.dev/vulnerability/CVE-2024-3772",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Regular expression denial of service in Pydantic < 2.4.0",
    "summary": "Regular expression denial of service in Pydanic < 2.4.0, < 1.10.13 allows remote attackers to cause denial of service via a crafted email string.",
    "evidence": "osv:CVE-2024-3772",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-3772",
      "aliases": [
        "CVE-2024-3772",
        "GHSA-mr82-8j83-vxmv",
        "PYSEC-2026-1812"
      ],
      "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/pydantic/pydantic",
              "type": "GIT",
              "events": [
                {
                  "introduced": "aeb8fd0255bf034212e808b92893283adc9f8d3a"
                },
                {
                  "fixed": "1f59075c69e7172f8019b0cf621f0d9fde406307"
                },
                {
                  "introduced": "b8bbfec670019e96530680a4b79551afc6e122ec"
                },
                {
                  "fixed": "8822578619bf8d0bb754b1cf7a2a905b50240d01"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.0"
                      },
                      {
                        "fixed": "2.4.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "1.0"
                      },
                      {
                        "fixed": "1.10.13"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.3.0",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v1.10.12",
            "v2.1.1",
            "v2.1.0",
            "v2.0.3",
            "v1.10.11",
            "v2.0.2",
            "v2.0.1",
            "v1.10.10",
            "v2.0",
            "v1.10.9",
            "v1.10.8",
            "v1.10.7",
            "v1.10.6",
            "v1.10.5",
            "v1.10.4",
            "v1.10.3",
            "v1.10.2",
            "v1.10.1",
            "v1.10.0",
            "v1.10.0b1",
            "v1.10.0a2",
            "v1.10a1",
            "v1.10.0a1",
            "v1.9.0",
            "v1.9.0a2",
            "v1.9.0a1",
            "v1.6.1",
            "v1.8.1",
            "v1.8",
            "v1.7.2",
            "v1.7.1",
            "v1.7",
            "v1.6",
            "v1.5.1",
            "v1.5",
            "v1.4",
            "v1.3",
            "v1.2",
            "v1.1",
            "v1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-3772.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.181515543Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6JBZLMSH4GAZOVBMT2JUO2LXHY7M2ALI/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/3xxx/CVE-2024-3772.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-3772",
        "https://github.com/pydantic/pydantic/pull/7360",
        "https://github.com/pydantic/pydantic"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-1333"
        ],
        "cna_assigner": "directcyber",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/3xxx/CVE-2024-3772.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-3772",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504202,
  "published_at": "2024-04-15T01:42:07.888+00:00"
}