CVE-2026-3336

7.5 HIGH
Published: March 02, 2026 Modified: March 11, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://aws.amazon.com/security/security-bulletins/2026-005-AWS/
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
Vendor Advisory
https://github.com/aws/aws-lc/releases/tag/v1.69.0
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
Release Notes
https://github.com/aws/aws-lc/security/advisories/GHSA-cfwj-9wp5-wqvp
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.0%
10th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

amazon