Bug 2456735 (CVE-2026-39892) - CVE-2026-39892 cryptography: Cryptography: Buffer overflow via non-contiguous buffer in API
Summary: CVE-2026-39892 cryptography: Cryptography: Buffer overflow via non-contiguous...
Keywords:
Status: NEW
Alias: CVE-2026-39892
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2457080 2457081 2457082
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-08 22:01 UTC by OSIDB Bzimport
Modified: 2026-06-16 13:53 UTC (History)
83 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:24761 0 None None None 2026-06-09 11:04:01 UTC
Red Hat Product Errata RHSA-2026:24762 0 None None None 2026-06-09 11:02:21 UTC

Description OSIDB Bzimport 2026-04-08 22:01:23 UTC 
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.
Comment 3 errata-xmlrpc 2026-06-09 11:02:17 UTC 
This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.6 for RHEL 9
  Red Hat Ansible Automation Platform 2.6 for RHEL 10

Via RHSA-2026:24762 https://access.redhat.com/errata/RHSA-2026:24762
Comment 4 errata-xmlrpc 2026-06-09 11:03:56 UTC 
This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.5 for RHEL 9
  Red Hat Ansible Automation Platform 2.5 for RHEL 8

Via RHSA-2026:24761 https://access.redhat.com/errata/RHSA-2026:24761
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