CVE-2026-3338

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

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.

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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-jchq-39cv-q4wj
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%
7th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

amazon