Improper Certificate Validation Affecting satellite-capsule:el8/python3-cryptography package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-RHEL7-SATELLITECAPSULE-21088912
  • published16 Oct 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?

There is no fixed version for RHEL:7 satellite-capsule:el8/python3-cryptography.

NVD Description

Note: Versions mentioned in the description apply only to the upstream satellite-capsule:el8/python3-cryptography package and not the satellite-capsule:el8/python3-cryptography package as distributed by RHEL. See How to fix? for RHEL:7 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