Improper Certificate Validation Affecting amazon-efs-utils package, versions <0:3.0.0-4.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.02% (7th percentile)

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  • Snyk IDSNYK-AMZN2023-AMAZONEFSUTILS-16068036
  • published15 Apr 2026
  • disclosed19 Mar 2026

Introduced: 19 Mar 2026

CVE-2026-4428  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 amazon-efs-utils to version 0:3.0.0-4.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1564.

NVD Description

Note: Versions mentioned in the description apply only to the upstream amazon-efs-utils package and not the amazon-efs-utils package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1