CVE-2026-4428

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-4428
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4428.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-4428
Aliases
Downstream
Published
2026-03-19T20:37:53.851Z
Modified
2026-07-08T08:13:28.171847219Z
Severity
  • 9.1 (Critical) CVSS_V4 - 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 CVSS Calculator
Summary
CRL Distribution Point Scope Check Logic Error in AWS-LC
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4428.json",
    "cna_assigner": "AMZN",
    "cwe_ids": [
        "CWE-299"
    ]
}
References

Affected packages

Git / github.com/aws/aws-lc

Affected ranges

Type
GIT
Repo
https://github.com/aws/aws-lc
Events
Introduced
6284822a2e30d9a8497ba7e07bf3f506808912f2
Fixed
47389586f8aa77c83245173793f4d44ed1d6c3a8
Introduced
190be0667cf1f7b39bed2c96760f08a6295b652b
Fixed
83d85826595641bb2f23c6108f2e031fcd5cd505
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "1.24.0"
        },
        {
            "fixed": "1.71.0"
        },
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.3.0"
        }
    ]
}

Affected versions

AWS-LC-FIPS-3.*
AWS-LC-FIPS-3.0.0
AWS-LC-FIPS-3.1.0
AWS-LC-FIPS-3.2.0
AWS-LC-FIPS-NETOS-v1.*
AWS-LC-FIPS-NETOS-v1.29.1
v1.*
v1.24.0
v1.24.1
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.30.0
v1.30.1
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.34.1
v1.34.2
v1.35.0
v1.35.1
v1.36.0
v1.36.1
v1.37.0
v1.38.0
v1.39.0
v1.40.0
v1.41.0
v1.41.1
v1.42.0
v1.43.0
v1.44.0
v1.45.0
v1.46.0
v1.46.1
v1.47.0
v1.48.0
v1.48.1
v1.48.2
v1.48.3
v1.48.4
v1.48.5
v1.49.0
v1.49.1
v1.50.0
v1.50.1
v1.51.0
v1.51.1
v1.51.2
v1.52.0
v1.52.1
v1.53.0
v1.53.1
v1.54.0
v1.55.0
v1.56.0
v1.57.0
v1.57.1
v1.58.0
v1.58.1
v1.59.0
v1.60.0
v1.61.0
v1.61.1
v1.61.2
v1.61.3
v1.61.4
v1.62.0
v1.62.1
v1.63.0
v1.64.0
v1.65.0
v1.65.1
v1.66.0
v1.66.1
v1.66.2
v1.67.0
v1.68.0
v1.69.0
v1.70.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4428.json"