← CVE Intelligence

CVE-2026-3337

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
AWS / AWS-LCaffected 1.21.0 before 1.69.0
AWS / AWS-LC-FIPSaffected 3.0.0 before 3.2.0

CWE

CWE-208

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.