CVE-2024-26130

HIGH EPSS 53.0%
Published Feb 21, 20242y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Feb 21, 2024 2y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
53.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 1

VendorProductVersionRange
cryptography.iocryptography*≥38.0.0  –  <42.0.4

References 3

  • github.com https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55
    Patch
  • github.com https://github.com/pyca/cryptography/pull/10423
    Issue TrackingPatch
  • github.com https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4
    Vendor Advisory

Remediation

  • github.com https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55
    Patch
  • github.com https://github.com/pyca/cryptography/pull/10423
    Issue TrackingPatch