Improper Certificate Validation Affecting kserve package, versions <0.20.0-r7


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-WOLFILATEST-KSERVE-19827624
  • published15 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 Wolfi kserve to version 0.20.0-r7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kserve package and not the kserve package as distributed by Wolfi. See How to fix? for Wolfi 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