CVE-2026-4428

Published: Mar 19, 2026 Last Modified: Mar 19, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,1
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,4
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: none

Description

AI Translation Available

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.

299

Improper Check for Certificate Revocation

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Integrity Other Confidentiality
Potential Impacts:
Gain Privileges Or Assume Identity Other Read Application Data
Applicable Platforms
Technologies: Not Technology-Specific, Web Based
Likelihood of Exploit: Medium
View CWE Details
https://aws.amazon.com/security/security-bulletins/2026-010…
https://aws.amazon.com/security/security-bulletins/2026-010-AWS/
https://github.com/aws/aws-lc/releases/tag/v1.71.0
https://github.com/aws/aws-lc/releases/tag/v1.71.0