汇总 cryptography.io 相关全部产品的 CVE 与安全漏洞情报，包括 CVSS、EPSS、公开时间与漏洞情报数据。
常见弱点模式包括 内存损坏与缓冲区溢出，在 生产负载与软件部署 使用场景中可能带来 内存损坏与应用崩溃 等风险。
相关漏洞数据主要来源于公开漏洞披露与安全公告，可用于评估历史漏洞暴露面与修复优先级。
| CVE | 摘要 | 来源 | 最高 CVSS | EPSS % | 公开时间 | 更新时间 |
|---|---|---|---|---|---|---|
| CVE-2026-39892 | cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7. | [email protected] | 6.9 | 0.53% | 2026-04-08 | 2026-06-17 |
| CVE-2026-34073 | cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to version 46.0.6, DNS name constraints were only validated against SANs within child certificates, and not the "peer name" presented during each validation. Consequently, cryptography would allow a peer named bar.example.com to validate against a wildcard leaf certificate for *.example.com, even if the leaf's parent certificate (or upwards) contained an excluded subtree constraint for b | [email protected] | 1.7 | 0.15% | 2026-03-30 | 2026-06-17 |
| CVE-2026-26007 | cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the public_key_from_numbers (or EllipticCurvePublicNumbers.public_key()), EllipticCurvePublicNumbers.public_key(), load_der_public_key() and load_pem_public_key() functions do not verify that the point belongs to the expected prime-order subgroup of the curve. This missing validation allows an attacker to provide a public key point P from a small-order subgroup. This can lead | [email protected] | 8.2 | 0.23% | 2026-02-10 | 2026-06-17 |
| CVE-2024-26130 | 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 res | [email protected] | 7.5 | 0.83% | 2024-02-21 | 2026-06-17 |
| CVE-2023-50782 | A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data. | [email protected] | 7.5 | 1.11% | 2024-02-05 | 2026-06-17 |
| CVE-2023-49083 | cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling `load_pem_pkcs7_certificates` or `load_der_pkcs7_certificates` could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been | [email protected] | 5.9 | 0.98% | 2023-11-29 | 2026-06-17 |
| CVE-2023-38325 | The cryptography package before 41.0.2 for Python mishandles SSH certificates that have critical options. | [email protected] | 7.5 | 0.61% | 2023-07-14 | 2026-06-17 |
| CVE-2023-23931 | cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since `update_into` was originally intr | [email protected] | 4.8 | 1.30% | 2023-02-07 | 2026-06-17 |
| CVE-2020-36242 | In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class. | [email protected] | 9.1 | 6.72% | 2021-02-07 | 2026-06-16 |
| CVE-2020-25659 | python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext. | [email protected] | 5.9 | 2.45% | 2021-01-11 | 2026-06-16 |
| CVE-2016-9243 | HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than algorithm.digest_size. | [email protected] | 7.5 | 3.40% | 2017-03-27 | 2026-06-16 |