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.
- Score
- CVSS 4.0 8.7 High
- Status
- Modified - ff89ba41-3aa1-4d27-914a-91399e9639e5
- Published
- 2026-03-02
- Last modified
- 2026-08-21
- Weaknesses
- CWE-347
Affected products
- Aws-lc-sys (Amazon)
- Aws Libcrypto (Amazon)
- Aws-lc (Aws)
- Confidential Compute Attestation (Redhat)
- Enterprise Linux (Redhat)
- Openshift (Redhat)
- Openshift Update Service (Redhat)
- Trusted Artifact Signer (Redhat)
- Trusted Profile Analyzer (Redhat)
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
- https://access.redhat.com/errata/RHSA-2026:5459
- https://access.redhat.com/security/cve/CVE-2026-3338
- https://bugzilla.redhat.com/show_bug.cgi?id=2444025
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3338.json
