CVE-2026-39892

Description

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.

References

• https://github.com/pyca/cryptography/security/advisories/GHSA-p423-j2cm-9vmq
• http://www.openwall.com/lists/oss-security/2026/04/08/12