RUSTSEC-2026-0047: PKCS7_verify Signature Validation Bypass in AWS-LC

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Details
Package	aws-lc-sys
Version	0.37.0
URL	https://aws.amazon.com/security/security-bulletins/2026-005-AWS
Patched Versions	>=0.38.0
Unaffected Versions	<0.24.0
Aliases	CVE-2026-3338, GHSA-hfpc-8r3f-gw53, GHSA-jchq-39cv-q4wj

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. aws-lc-sys contains
code from AWS-LC. Applications using aws-lc-sys should upgrade to the most
recent release of aws-lc-sys.

There is no workaround; applications using aws-lc-sys should upgrade to the
most recent release of aws-lc-sys.