CVE-2026-4428

Published: Mar 19, 2026Modified: Jun 17, 2026

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: ff89ba41-3aa1-4d27-914a-91399e9639e5 (Secondary)

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.

Related CWEs

CWE-299

Improper Check for Certificate Revocation

The product does not check or incorrectly checks the revocation status of a certificate, which may cause it to use a certificate that has been compromised.

References (2)

https://aws.amazon.com/security/security-bulletins/2026-010-AWS/

Source: ff89ba41-3aa1-4d27-914a-91399e9639e5

https://github.com/aws/aws-lc/releases/tag/v1.71.0

Source: ff89ba41-3aa1-4d27-914a-91399e9639e5

Timeline

No history available yet.