{"schema_version":"1.9.0","id":"CVE-2024-26130","published":"2024-02-21T16:28:18.632Z","modified":"2026-08-12T03:51:08.772826804Z","aliases":["GHSA-6vqw-3v5j-54x4","PYSEC-2024-225"],"related":["ALSA-2025:15608","CGA-83rw-66j6-76m3","SUSE-SU-2024:0763-1","SUSE-SU-2024:2138-1","openSUSE-SU-2024:13710-1","openSUSE-SU-2026:11468-1"],"summary":"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","details":"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.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pyca/cryptography","events":[{"introduced":"52d6f1a491f6ade379ace124b843ffba9fb4ab4f"},{"fixed":"fe18470f7d05f963e7267e34fdf985d81ea6ceea"},{"fixed":"97d231672763cdb5959a3b191e692a362f1b9e55"}],"database_specific":{"cpe":"cpe:2.3:a:cryptography.io:cryptography:*:*:*:*:*:python:*:*","extracted_events":[{"introduced":"38.0.0"},{"fixed":"42.0.4"}],"source":["CPE_RANGE","REFERENCES"]}}],"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"}}],"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26130.json"},{"type":"ADVISORY","url":"https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26130"},{"type":"FIX","url":"https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55"},{"type":"FIX","url":"https://github.com/pyca/cryptography/pull/10423"}],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26130.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}