CVE-2026-4428
- 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
- 2026-08-12T16:24:28.125230Z
- 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
{ "cwe_ids": [ "CWE-299" ], "cna_assigner": "AMZN", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4428.json" }- References
Affected packages
Git / github.com/aws/aws-lc
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
vanir_signatures_modified
"2026-08-12T16:24:28Z"
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4428.json"
vanir_signatures
[
{
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1",
"digest": {
"length": 621.0,
"function_hash": "315553051490645340434301782701760588989"
},
"id": "CVE-2026-4428-4fef2854",
"source": "https://github.com/aws/aws-lc/commit/83d85826595641bb2f23c6108f2e031fcd5cd505",
"target": {
"function": "crl_crldp_check",
"file": "crypto/x509/x509_vfy.c"
}
},
{
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"67546155362554212794720633293763579087",
"60173126581954837125601684341052211646",
"171474131814531793932529892352574222281",
"179823018402105157128282776881034288750",
"126559276406436210284828049326390844784",
"67089962090722491870780077947163980547"
],
"threshold": 0.9
},
"id": "CVE-2026-4428-858c9e2d",
"source": "https://github.com/aws/aws-lc/commit/83d85826595641bb2f23c6108f2e031fcd5cd505",
"target": {
"file": "crypto/x509/x509_test.cc"
}
},
{
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"211160966742197397106823759224917572755",
"35047788452717782869365276537476936",
"280559450770590975653021767826529623376",
"153990721801522824870147534967993801522",
"27068015445326099177373872550785267766",
"217631864836764034369360838167683719714",
"196990455326174579627504348853721303576",
"152716710549071912863749139833951271141",
"230925751211779502697051772006460993554",
"90797013554136129170406954188265437728",
"186246592097486328349711158695014349986"
],
"threshold": 0.9
},
"id": "CVE-2026-4428-a4bd71ac",
"source": "https://github.com/aws/aws-lc/commit/47389586f8aa77c83245173793f4d44ed1d6c3a8",
"target": {
"file": "crypto/x509/x509_vfy.c"
}
},
{
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"211160966742197397106823759224917572755",
"35047788452717782869365276537476936",
"280559450770590975653021767826529623376",
"153990721801522824870147534967993801522",
"27068015445326099177373872550785267766",
"217631864836764034369360838167683719714",
"196990455326174579627504348853721303576",
"152716710549071912863749139833951271141",
"230925751211779502697051772006460993554",
"90797013554136129170406954188265437728",
"186246592097486328349711158695014349986"
],
"threshold": 0.9
},
"id": "CVE-2026-4428-aa813e60",
"source": "https://github.com/aws/aws-lc/commit/83d85826595641bb2f23c6108f2e031fcd5cd505",
"target": {
"file": "crypto/x509/x509_vfy.c"
}
},
{
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1",
"digest": {
"length": 621.0,
"function_hash": "315553051490645340434301782701760588989"
},
"id": "CVE-2026-4428-cb29f789",
"source": "https://github.com/aws/aws-lc/commit/47389586f8aa77c83245173793f4d44ed1d6c3a8",
"target": {
"function": "crl_crldp_check",
"file": "crypto/x509/x509_vfy.c"
}
},
{
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"67546155362554212794720633293763579087",
"60173126581954837125601684341052211646",
"171474131814531793932529892352574222281",
"179823018402105157128282776881034288750",
"126559276406436210284828049326390844784",
"67089962090722491870780077947163980547"
],
"threshold": 0.9
},
"id": "CVE-2026-4428-e2336e74",
"source": "https://github.com/aws/aws-lc/commit/47389586f8aa77c83245173793f4d44ed1d6c3a8",
"target": {
"file": "crypto/x509/x509_test.cc"
}
}
]