GHSA-M4W9-HJFW-VWJ4 http4k: `HmacSha256.hash` (despite the `Hmac` naming) computed a plain unkeyed digest; clarified by deprecation in favour of `Sha256.hash` / `Sha256.hmac`

Impact The HmacSha256 class contained two functions: - hashpayload — a plain unkeyed SHA-256 digest. The Hmac prefix in the class name was misleading; this function has no key parameter, so it could never have been an HMAC. - hmacSHA256key, data — a properly keyed HMAC-SHA256. A reader who didn't...

http4k: `HmacSha256.hash` (despite the `Hmac` naming) computed a plain unkeyed digest; clarified by deprecation in favour of `Sha256.hash` / `Sha256.hmac`

Impact The HmacSha256 class contained two functions: - hashpayload — a plain unkeyed SHA-256 digest. The Hmac prefix in the class name was misleading; this function has no key parameter, so it could never have been an HMAC. - hmacSHA256key, data — a properly keyed HMAC-SHA256. A reader who didn't...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity through the misleadingly named HmacSha256.hash function. An attacker can bypass message authentication by exploiting the use of an unkeyed digest where a keyed HMAC was expected. This is on...