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CVE-2026-3336

HIGH CVSS: 7.5 Published: 2026-03-02 Modified: 2026-07-15

Description

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.

Affected Platforms

Amazon Aws LibcryptoAmazon Aws-Lc-Sys

Weakness Type

CWE-295, CWE-295

References