CVE-2026-3338
Improper signature validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass signature verification when processing PKCS7 objects with Authenticated Attributes.
Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.
Package Versions Affected
Automatically patch vulnerabilities without upgrading
CVSS Version



Related Resources
References
https://aws.amazon.com/security/security-bulletins/2026-005-AWS/, https://github.com/aws/aws-lc/releases/tag/v1.69.0, https://github.com/aws/aws-lc/security/advisories/GHSA-jchq-39cv-q4wj
