cryptography NULL pointer deference with pkcs12.serialize_key_and_certificates when called with a non-matching certificate and private key and an hmac_hash override

{
  "id": "3a412b44fbc70665e0f394e82f3b636471b15c2ac30ae7d5e61dcfcbfa171111",
  "url": "https://osv.dev/vulnerability/CVE-2024-26130",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "cryptography NULL pointer deference with pkcs12.serialize_key_and_certificates when called with a non-matching certificate and private key and an hmac_hash override",
    "summary": "cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Starting in version 38.0.0 and prior to version 42.0.4, if `pkcs12.serialize_key_and_certificates` is called with both a certificate whose public key did not match the provided private key and an `encryption_algorithm` with `hmac_hash` set (via `PrivateFormat.PKCS12.encryption_builder().hmac_hash(...)`, then a NULL pointer dereference would occur, crashing the Python process. This has been resolved in version 42.0.4, the first version in which a `ValueError` is properly raised.",
    "evidence": "osv:CVE-2024-26130",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-26130",
      "aliases": [
        "CVE-2024-26130",
        "GHSA-6vqw-3v5j-54x4",
        "PYSEC-2024-225"
      ],
      "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/pyca/cryptography",
              "type": "GIT",
              "events": [
                {
                  "introduced": "52d6f1a491f6ade379ace124b843ffba9fb4ab4f"
                },
                {
                  "fixed": "fe18470f7d05f963e7267e34fdf985d81ea6ceea"
                },
                {
                  "fixed": "97d231672763cdb5959a3b191e692a362f1b9e55"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:cryptography.io:cryptography:*:*:*:*:*:python:*:*",
                    "range": [
                      {
                        "introduced": "38.0.0"
                      },
                      {
                        "fixed": "42.0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "97d231672763cdb5959a3b191e692a362f1b9e55"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "42.0.3",
            "42.0.2",
            "42.0.1",
            "42.0.0",
            "41.0.0",
            "40.0.0",
            "39.0.0",
            "38.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26130.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.775056295Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26130.json",
        "https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-26130",
        "https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55",
        "https://github.com/pyca/cryptography/pull/10423"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-476"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26130.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-26130",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509389,
  "published_at": "2024-02-21T16:28:18.632+00:00"
}