CVE-2026-3336

This CVE affects AWS-LC: improper certificate validation in PKCS7_verify() can bypass certificate chain verification for PKCS7 objects with multiple signers (excluding the final signer). Impact is high (integrity risk) with network attack potential. AWS customers are not required to act, but appl...

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-2026-3338

The vulnerability CVE-2026-3338 arises from improper signature validation in PKCS7_verify() within the AWS-LC library, allowing an unauthenticated user to bypass signature verification when processing PKCS7 objects with Authenticated Attributes. Affected component: AWS-LC. Root cause: flawed sign...