CVEvulnerability
CVE-2026-3336
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-295
Description
Improper certificate validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass certificate chain verification when processing PKCS7 objects with multiple signers, except the final signer.
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-295 Improper Certificate Validation 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-cfwj-9wp5-wqvp Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:5459 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-3336 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2444026 bugzilla.redhat.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3336.json security.access.redhat.com