HIGHCVE-2026-3338Published Modified CNA AMZN
CVE-2026-3338: PKCS7_verify Signature Validation Bypass in AWS-LC
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.
Metrics
- CVSS v4.0
- 8.7
- Severity
- HIGH
- Fixed in
- 1.69.0
- Affected Products
- 1
Affected packages
- AWS / AWS-LC< 1.69.0 (from 1.41.0)
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:NReferences