Exponential ReDoS in snowflake-connector-python leads to denial of service

{
  "id": "86e999a559f414e218d43a2309626c184f04d5bfde0bc7d2da29b5deeb362d6c",
  "url": "https://osv.dev/vulnerability/CVE-2022-42965",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Exponential ReDoS in snowflake-connector-python leads to denial of service",
    "summary": "An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the snowflake-connector-python PyPI package, when an attacker is able to supply arbitrary input to the undocumented get_file_transfer_type method",
    "evidence": "osv:CVE-2022-42965",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2022-42965",
      "aliases": [
        "CVE-2022-42965",
        "GHSA-4r6j-fwcx-94cf",
        "PYSEC-2026-922"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/snowflakedb/snowflake-connector-python",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d016d816ee80095ecbd590cdb1fb090510d78be7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:snowflake:snowflake_connector:*:*:*:*:*:python:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.8.2"
                      }
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                    "source": "CPE_RANGE"
                  }
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              }
            }
          ],
          "versions": [
            "v2.2.3",
            "v2.8.1",
            "v2.8.0",
            "v2.7.12",
            "v2.7.11",
            "v2.7.10",
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-42965.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.286331593Z",
      "provider": "osv",
      "references": [
        "https://research.jfrog.com/vulnerabilities/snowflake-connector-python-redos-xray-257185/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/42xxx/CVE-2022-42965.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-42965"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-1333"
        ],
        "cna_assigner": "JFROG",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
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                    "fixed": "2.8.2"
                  }
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                "source": "AFFECTED_FIELD",
                "strategy": "SplitRange"
              }
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        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/42xxx/CVE-2022-42965.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-42965",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 487427,
  "published_at": "2022-11-09T00:00:00+00:00"
}