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CVE-2026-3338

PKCS7_verify Signature Validation Bypass in AWS-LC

CVSS 8.7 HIGHEPSS 0.7%CWE-347
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Produtos afetados
AWS · AWS-LC

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