CVE-2026-48480: Netty Netty-Incubator-Codec-Ohttp

Medium severity, CVSS 6.6. EPSS: 0.3% chance of exploitation in the next 30 days.

The netty incubator codec.bhttp is a java language binary http parser. Prior to version 0.0.22.FInal, the codec-ohttp implementation of draft-ietf-ohai-chunked-ohttp does not verify that a cryptographically-signed final chunk was received before the outer HTTP body terminates. An on-path adversary (the OHTTP relay itself, or any MITM on the relay↔gateway or relay↔client transport) can forward a prefix of a legitimate chunked-OHTTP message—cut at a non-final chunk boundary—and close the outer body cleanly, producing no decryption error and no exception in the receiving application. Version 0.0.22.Final fixes the issue.

Affected products

• Netty Netty-Incubator-Codec-Ohttp: before 0.0.22.Final (fixed in 0.0.22.Final)

Published 2026-06-04. Last modified 2026-07-22.