CVE-2026-3338
HIGHCVSS v3.1: 7.5 · EPSS: 0.0070 (48.6 percentile)
Source data as of:
At a glance
- Severity
- HIGH
- CVSS
- 7.5 v3.1 · NVD
- EPSS
- 0.0070 (48.6 percentile) · FIRST.org
- CISA KEV
- No
- Attack conditions (CVSS vector)
- NetworkNo privilegesNo user interaction · Source: NVD Vector
- Affected vendors
- amazon
- Published
- 2026-03-02 · Modified: 2026-06-30
- References
- Jump to references (7)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
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.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.
- Reference https://aws.amazon.com/security/security-bulletins/2026-005-AWS/
- Patch https://github.com/aws/aws-lc/releases/tag/v1.69.0
- Vendor advisory https://github.com/aws/aws-lc/security/advisories/GHSA-jchq-39cv-q4wj
- Distro https://access.redhat.com/errata/RHSA-2026:5459
- Distro https://access.redhat.com/security/cve/CVE-2026-3338
- Distro https://bugzilla.redhat.com/show_bug.cgi?id=2444025
- Distro https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3338.json