CVE-2026-3338

HIGH

7.5

Description

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/2/2026

Last Modified3/11/2026

Sourcenvd

Honeypot Sightings0

Affected Products

amazon:aws-lc-sysamazon:aws_libcrypto

Weaknesses (CWE)

CWE-347

References

https://aws.amazon.com/security/security-bulletins/2026-005-AWS/(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/aws/aws-lc/releases/tag/v1.69.0(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/aws/aws-lc/security/advisories/GHSA-jchq-39cv-q4wj(ff89ba41-3aa1-4d27-914a-91399e9639e5)

IOC Correlations

No correlations recorded

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