Security advisory

{
  "id": "dfc51371bfa1c93aa7589c019f214b1d79606a67aa70b77e2435a97b454f9cce",
  "url": "https://osv.dev/vulnerability/CVE-2022-40899",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-40899",
    "summary": "An issue discovered in Python Charmers Future 0.18.2 and earlier allows remote attackers to cause a denial of service via crafted Set-Cookie header from malicious web server.",
    "evidence": "osv:CVE-2022-40899",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-40899",
      "aliases": [
        "CVE-2022-40899",
        "GHSA-v3c5-jqr6-7qm8",
        "PYSEC-2022-42991"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pythoncharmers/python-future",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "01a1d313b0e17580f31e3d02a2225d7b6f471aff"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.18.2"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "cpe": "cpe:2.3:a:pythoncharmers:python-future:*:*:*:*:*:python:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.18.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.18.2",
            "v0.18.1",
            "v0.18.0",
            "v0.17.1",
            "v0.15.2",
            "v0.15.1",
            "v0.15.0",
            "v0.14.3",
            "v0.14.2",
            "v0.14.1",
            "v0.14.0",
            "v0.13.1",
            "v0.13.0",
            "v0.12.3",
            "v0.12.2",
            "v0.12.1",
            "v0.11",
            "v0.10.0",
            "v0.10.1",
            "v0.9.0",
            "v0.8.2",
            "v0.8.1",
            "v0.8.0",
            "v0.8.0-beta1",
            "v0.7.0",
            "v0.6.0",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.0",
            "v0.3.5",
            "v0.3.4",
            "v0.3.3",
            "v0.3.2",
            "v0.3.0",
            "v0.3.0-rc2",
            "v0.3.0-rc1",
            "v0.2.2.1",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-40899.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.943320565Z",
      "provider": "osv",
      "references": [
        "https://github.com/PythonCharmers/python-future/blob/master/src/future/backports/http/cookiejar.py#L215",
        "https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/40xxx/CVE-2022-40899.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-40899",
        "https://github.com/PythonCharmers/python-future/pull/610",
        "https://github.com/python/cpython/pull/17157",
        "https://pypi.org/project/future/"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/40xxx/CVE-2022-40899.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-40899",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507503,
  "published_at": "2022-12-22T00:00:00+00:00"
}