Improper Certificate Validation Affecting python3.14-cryptography-debuginfo package, versions <0:45.0.4-4.el10_2.5


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-CENTOS10-PYTHON314CRYPTOGRAPHYDEBUGINFO-19650815
  • published9 Sept 2026
  • disclosed3 Aug 2026

Introduced: 3 Aug 2026

CVE-2026-69248  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Centos:10 python3.14-cryptography-debuginfo to version 0:45.0.4-4.el10_2.5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.14-cryptography-debuginfo package and not the python3.14-cryptography-debuginfo package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In versions 45.0.0 through 48.0.0, if an intermediate constrained CA permits the DNS name foo.example.com, and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches, where a wildcard pattern was treated as matching a more-specific permitted constraint even though *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows acceptance of an invalid certificate chain. This issue is fixed in 49.0.0.

CVSS Base Scores

version 3.1