CVE-2026-3337

MEDIUM

AWS-LC <1.69.0 - Info Disclosure

Title source: llm

Description

Observable timing discrepancy in AES-CCM decryption in AWS-LC allows an unauthenticated user to potentially determine authentication tag validity via timing analysis. The impacted implementations are through the EVP CIPHER API: EVP_aes_128_ccm, EVP_aes_192_ccm, and EVP_aes_256_ccm. Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.

References (3)

Scores

CVSS v3 5.9
EPSS 0.0010
EPSS Percentile 27.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Classification

CWE
CWE-208
Status published

Affected Products (2)

aws/aws_libcrypto < 1.69.0
aws/aws_libcrypto < 3.2.0

Timeline

Published Mar 02, 2026
Tracked Since Mar 03, 2026