CVEvulnerability
CVE-2026-3338
8.7 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-03-02
- Last modified
- 2026-07-15
- Assigner
- ff89ba41-3aa1-4d27-914a-91399e9639e5
- CVSS 4.0 (ff89ba41-3aa1-4d27-914a-91399e9639e5)
- 8.7 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 (ff89ba41-3aa1-4d27-914a-91399e9639e5)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-347
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.
Affected configurations
• amazon aws-lc-sys (>= 0.24.0 < 0.38.0)
• amazon aws libcrypto (>= 1.41.0 < 1.69.0)
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- https://aws.amazon.com/security/security-bulletins/2026-005-AWS/ Vendor Advisory
- https://github.com/aws/aws-lc/releases/tag/v1.69.0 Release Notes
- https://github.com/aws/aws-lc/security/advisories/GHSA-jchq-39cv-q4wj Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:5459 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-3338 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2444025 bugzilla.redhat.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3338.json security.access.redhat.com