Vulnerability RUSTSEC-2026-0047
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 02, 2026 at 12:00 PM UTC
PKCS7_verify Signature Validation Bypass in AWS-LC
>=0.24.0 <0.38.0
>=0.24.0 <0.38.0
Summary
PKCS7_verify Signature Validation Bypass in AWS-LC
Details
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.
Related Vulnerabilities
Other vulnerabilities affecting the same packages
High Risk
7 months ago
CRL Distribution Point Scope Check Logic Error in AWS-LC
>=0.15.0 <0.39.0 GHSA-9f94-5g5w-gf6r
>=0.15.0 <0.39.0 GHSA-9f94-5g5w-gf6r
High Risk
7 months ago
AWS-LC X.509 Name Constraints Bypass via Wildcard/Unicode CN
>=0.32.0 <0.39.0 GHSA-394x-vwmw-crm3
>=0.32.0 <0.39.0 GHSA-394x-vwmw-crm3
Unknown
7 months ago
AWS-LC X.509 Name Constraints Bypass via Wildcard/Unicode CN
>=0.32.0 <0.39.0 RUSTSEC-2026-0044
>=0.32.0 <0.39.0 RUSTSEC-2026-0044
High Risk
7 months ago
CRL Distribution Point Scope Check Logic Error in AWS-LC
>=0.15.0 <0.39.0 RUSTSEC-2026-0048
>=0.15.0 <0.39.0 RUSTSEC-2026-0048
High Risk
8 months ago
AWS-LC has PKCS7_verify Signature Validation Bypass
>=0.24.0 <0.38.0 GHSA-hfpc-8r3f-gw53
>=0.24.0 <0.38.0 GHSA-hfpc-8r3f-gw53
Impacted packages
Timeline
Published
8 months ago
March 02, 2026 at 12:00 PM UTC
Fixed (0.38.0)
8 months ago
March 02, 2026 at 10:05 PM UTC
Last Modified
13 hours ago
November 09, 2026 at 11:00 AM UTC