CVE-2026-4428

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.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-010-AWS/
https://github.com/aws/aws-lc/releases/tag/v1.71.0

Configurations

No configuration.

History

No history.

Information

Published : 2026-03-19 21:17

Updated : 2026-03-20 13:39

NVD link : CVE-2026-4428

Mitre link : CVE-2026-4428

CVE.ORG link : CVE-2026-4428

JSON object : View

Products Affected

No product.

CWE

CWE-299

Improper Check for Certificate Revocation

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