Improper Certificate Validation Affecting amazon-efs-utils package, versions <0:3.0.0-4.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-AMZN2-AMAZONEFSUTILS-16081163
  • published16 Apr 2026
  • disclosed2 Mar 2026

Introduced: 2 Mar 2026

CVE-2026-3336  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 amazon-efs-utils to version 0:3.0.0-4.amzn2 or higher.
This issue was patched in ALAS2-2026-3245.

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:2 relevant fixed versions and status.

Improper certificate validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass certificate chain verification when processing PKCS7 objects with multiple signers, except the final signer.

Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.

CVSS Base Scores

version 3.1