AWS-LC has Timing Side-Channel in AES-CCM Tag Verification

Summary AWS-LC is an open-source, general-purpose cryptographic library. Impact 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...

CVE-2026-3337

CVE-2026-3337 documents a timing side-channel in AES-CCM decryption within AWS-LC affecting EVP_aes_128_ccm, EVP_aes_192_ccm, and EVP_aes_256_ccm. An unauthenticated user could potentially determine authentication tag validity via timing analysis. The impact and remediation are described by the a...

CVE-2026-3337 Timing Side-Channel in AES-CCM Tag Verification in AWS-LC

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: EVPaes128ccm, EVPaes192ccm, and EVPaes256ccm. Customers of AWS servic...