CVE-2026-39892 | BDVDB-2026-325913 Detail
pycacryptography
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.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact low. Attack vector: network.
Weaknesses#
References#
- https://github.com/pyca/cryptography/security/advisories/GHSA-p423-j2cm-9vmq
- https://github.com/pyca/cryptography/commit/622d672e429a7cff836a23c5903683dbec1901f5
- https://github.com/pyca/cryptography/commit/c09d38ae52de7d95fe683b7a7c496f5751616f27
- https://github.com/pypa/advisory-database/tree/main/vulns/cryptography/PYSEC-2026-36.yaml
- http://www.openwall.com/lists/oss-security/2026/04/08/12
- https://access.redhat.com/security/cve/CVE-2026-39892
- https://bugzilla.redhat.com/show_bug.cgi?id=2456735
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39892.json
- https://access.redhat.com/errata/RHSA-2026:24761
- https://access.redhat.com/errata/RHSA-2026:24762
- https://access.redhat.com/errata/RHSA-2026:30089
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:24866
- https://access.redhat.com/errata/RHSA-2026:20338
- https://access.redhat.com/errata/RHSA-2026:43855
Show all 33
- https://access.redhat.com/errata/RHSA-2026:43854
- https://access.redhat.com/errata/RHSA-2026:43851
- https://access.redhat.com/errata/RHSA-2026:43670
- https://access.redhat.com/errata/RHSA-2026:43853
- https://access.redhat.com/errata/RHSA-2026:43651
- https://access.redhat.com/errata/RHSA-2026:46956
- https://access.redhat.com/errata/RHSA-2026:7295
- https://access.redhat.com/errata/RHSA-2026:42644
- https://access.redhat.com/errata/RHSA-2026:24977
- https://access.redhat.com/errata/RHSA-2026:37275
- https://access.redhat.com/errata/RHSA-2026:22840
- https://access.redhat.com/errata/RHSA-2026:22629
- https://access.redhat.com/errata/RHSA-2026:21017
- https://access.redhat.com/errata/RHSA-2026:24853
- https://access.redhat.com/errata/RHSA-2026:19375
- https://access.redhat.com/errata/RHSA-2026:22465
- https://access.redhat.com/errata/RHSA-2026:23361
- https://access.redhat.com/errata/RHSA-2026:24483
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.