netty-incubator-codec-ohttp OHttpVersionChunkDraft's Missing Final-Chunk Enforcement Leads to Undetected Stream Truncation
CVE-2026-48480

6.6MEDIUM

Key Information:

Vendor

Netty

Status
Netty-incubator-codec-ohttp
Vendor
CVE Published:
4 June 2026

What is CVE-2026-48480?

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 Version(s)

netty-incubator-codec-ohttp < 0.0.22.Final

References

https://github.com/netty/netty-incubator-codec-ohttp/secu...
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https://github.com/netty/netty-incubator-codec-ohttp/comm...
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CVSS V4

Score:
6.6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.