CVE WatchJul 17, 2026

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 n

CVSS

9.8

Critical

EPSS

0.7%

p47

KEV

—

Exploit Today

0-100

Published: Apr 8, 2026 · Last modified: Jul 17, 2026 · CWE-119 · CWE-131

EPSS · 30d

0.7%EPSS · 30 days0.7%

2026-06-302026-07-17

Technical 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.

Official references

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