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.
Published:Apr 8, 2026
Last Modified:Apr 15, 2026
EPS:Apr 8, 2026
EPSS Score:0.00055
CVSS Score:9.8
Affected Products
Vendor
Product
Action
Vendor
Cryptography.io
Product
Cryptography
Cryptography.io
Cryptography
Vendor
Pyca
Product
Cryptography
Pyca
Cryptography
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
