CRITICALCVE-2026-4428Published Modified CNA AMZN
CVE-2026-4428: CRL Distribution Point Scope Check Logic Error in AWS-LC
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 v4.0
- 9.1
- Severity
- CRITICAL
- Fixed in
- 1.71.0
- Affected Products
- 2
Affected packages
- AWS / AWS-LC< 1.71.0 (from 1.24.0)
- AWS / AWS-LC-FIPS< 3.3.0 (from 3.0.0)
CVSS 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:NReferences