Vulnerability GHSA-hfpc-8r3f-gw53

High Risk
HIGH RISK
CVSS Score: 7.5
Score Range: 7.0–8.9
High severity vulnerabilities (CVSS 7.0–8.9). Serious vulnerabilities that should be prioritized soon after critical fixes.
8 months ago
March 03, 2026 at 08:25 PM UTC
AWS-LC has PKCS7_verify Signature Validation Bypass
>=0.24.0 <0.38.0
>=0.24.0 <0.38.0

Summary

AWS-LC has PKCS7_verify Signature Validation Bypass

Details

Summary

AWS-LC is an open-source, general-purpose cryptographic library.

Impact

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.

Impacted versions:

aws-lc-sys versions: >= 0.24.0, < 0.38.0

Patches

The patch is included in v0.38.0

Workarounds

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

Resources

If there are any questions or comments about this advisory, contact [AWS/Amazon] Security via the vulnerability reporting page or directly via email to [email protected]. Please do not create a public GitHub issue.

Impacted packages

Timeline

Published
8 months ago
March 03, 2026 at 08:25 PM UTC
Fixed (0.38.0)
8 months ago
March 02, 2026 at 10:05 PM UTC
Last Modified
2 months ago
September 10, 2026 at 03:50 AM UTC