CVSS 4.0
6.9 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NCVE-2026-39892
Medium (6.9) in cryptography.io cryptography. EPSS 0.7% chance of exploitation in the next 30 days. Fixed in cryptography 46.0.7.
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.
Severity
CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-119, CWE-131
- Published
- Modified
- Record from
- the NVD, synced
Affected
- cryptography.io:cryptography
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-p423-j2cm-9vmq | PyPI | cryptography | >=45.0.0 <46.0.7 | 46.0.7 |
| PYSEC-2026-36 | PyPI | cryptography | >=45.0.0 <46.0.7 | 46.0.7 |