CVE-2026-3337
Timing Side-Channel in AES-CCM Tag Verification in AWS-LC
Summary
Timing Side-Channel in AES-CCM Tag Verification in AWS-LC
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory aws.amazon.com
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com