CVE-2026-41207 netty-incubator-codec-ohttp's HPKEContext operations may produce empty byte[] on failures

The netty incubator codec.bhttp is a java language binary http parser. Prior to version 0.0.21.Final, HKDFexpand returns non-NULL on failure. The byte is filled with zeros and has no way to distinguish success from failure. Since this output is used as HKDF key material for the response AEAD, a...

CVE-2026-41207

The CVE concerns the netty-incubator-codec-ohttp project. Before version 0.0.21.Final, HKDF_expand could return a non-NULL failure result and fill the output byte[] with zeros, making HKDF key material indistinguishable from a legitimate output. This zeroed material feeds directly into OHttpCrypt...

Insecure Randomness

Overview Affected versions of this package are vulnerable to Insecure Randomness due to the HKDFexpand and EVPHPKECTXexport functions returning a zero-filled byte array on failure, which is then used as key material for AEAD encryption. An attacker can predict and exploit the deterministic,...