PT-2026-22704 · Amazon Web Services · Aws-Lc

Hightorben-Hansen · Published 2026-03-02 · Updated 2026-03-11 · CVE-2026-3338

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

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

Name of the Vulnerable Software and Affected Versions AWS-LC versions prior to 1.69.0

Description A flaw exists in the PKCS7 verify() function within AWS-LC that permits an unauthenticated user to circumvent signature verification when handling PKCS7 objects containing Authenticated Attributes. This bypass occurs during the processing of PKCS7 objects.

Recommendations Upgrade to AWS-LC version 1.69.0.

Fix

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2026-3338

GHSA-HFPC-8R3F-GW53

GHSA-JCHQ-39CV-Q4WJ

RUSTSEC-2026-0047

Affected Products

Aws-Lc

References · 24

• https://github.com/aws/aws-lc/releases/tag/v1.69.0 · Patch
• https://github.com/aws/aws-lc/security/advisories/GHSA-jchq-39cv-q4wj · Vendor Advisory
• https://aws.amazon.com/security/security-bulletins/2026-005-AWS · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3338 · Security Note
• https://osv.dev/vulnerability/CVE-2026-3338 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-hfpc-8r3f-gw53 · Vendor Advisory
• https://osv.dev/vulnerability/RUSTSEC-2026-0047 · Vendor Advisory
• https://github.com/aws/aws-lc-rs · Note
• https://github.com/aws/aws-lc-rs/security/advisories/GHSA-hfpc-8r3f-gw53 · Note
• https://twitter.com/Huntio/status/2029935081708569050 · Twitter Post
• https://twitter.com/CVEnew/status/2028588957856833690 · Twitter Post
• https://t.me/cveNotify/154040 · Telegram Post
• https://rustsec.org/advisories/RUSTSEC-2026-0047.html · Note
• https://twitter.com/cyberbivash/status/2028642307608641752 · Twitter Post
• https://t.me/CVEtracker/46173 · Telegram Post