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.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Thu, 19 Mar 2026 21:00:00 +0000

Type Values Removed Values Added
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.
Title CRL Distribution Point Scope Check Logic Error in AWS-LC
Weaknesses CWE-299
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-03-19T20:40:06.587Z

Reserved: 2026-03-19T13:42:59.783Z

Link: CVE-2026-4428

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-19T21:17:14.170

Modified: 2026-03-19T21:17:14.170

Link: CVE-2026-4428

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses