CVE-2026-4428

HighCVSS 7.4/10Last modified Jun 17, 2026

Description

A logic error in CRL distribution point validation in AWS-LC before 1.71.0 causes partitioned CRLs to be incorrectly rejected as out of scope, which allows a revoked certificate to bypass certificate revocation checks.

To remediate this issue, users should upgrade to AWS-LC 1.71.0 or AWS-LC-FIPS-3.3.0.

Metrics

CVSS 3.1 7.4/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-299

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
AWS	AWS-LC	>= 1.24.0, < 1.71.0
AWS	AWS-LC-FIPS	>= 3.0.0, < 3.3.0

References

Timeline

Published: Mar 19, 2026
Last modified: Jun 17, 2026
NVD status: Awaiting Analysis

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