Security Advisory

CVE-2026-3337

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-02 21:20:08

Last updated 2026-03-03 20:04:27

Assigner AMZN

State PUBLISHED

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.

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