VulnerableCode Package Details - pkg:maven/io.netty/netty-codec-http@4.1.71.Final

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Vulnerability	Summary	Fixed by
VCID-bx4g-w9et-87hx Aliases: CVE-2024-29025 GHSA-5jpm-x58v-624v	Netty's HttpPostRequestDecoder can OOM ### Summary The `HttpPostRequestDecoder` can be tricked to accumulate data. I have spotted currently two attack vectors ### Details 1. While the decoder can store items on the disk if configured so, there are no limits to the number of fields the form can have, an attacher can send a chunked post consisting of many small fields that will be accumulated in the `bodyListHttpData` list. 2. The decoder cumulates bytes in the `undecodedChunk` buffer until it can decode a field, this field can cumulate data without limits ### PoC Here is a Netty branch that provides a fix + tests : https://github.com/vietj/netty/tree/post-request-decoder Here is a reproducer with Vert.x (which uses this decoder) https://gist.github.com/vietj/f558b8ea81ec6505f1e9a6ca283c9ae3 ### Impact Any Netty based HTTP server that uses the `HttpPostRequestDecoder` to decode a form.	4.1.108.Final Affected by 0 other vulnerabilities.

Vulnerability

Summary

Fixed by

VCID-bx4g-w9et-87hx
Aliases:
CVE-2024-29025
GHSA-5jpm-x58v-624v

Netty's HttpPostRequestDecoder can OOM ### Summary The `HttpPostRequestDecoder` can be tricked to accumulate data. I have spotted currently two attack vectors ### Details 1. While the decoder can store items on the disk if configured so, there are no limits to the number of fields the form can have, an attacher can send a chunked post consisting of many small fields that will be accumulated in the `bodyListHttpData` list. 2. The decoder cumulates bytes in the `undecodedChunk` buffer until it can decode a field, this field can cumulate data without limits ### PoC Here is a Netty branch that provides a fix + tests : https://github.com/vietj/netty/tree/post-request-decoder Here is a reproducer with Vert.x (which uses this decoder) https://gist.github.com/vietj/f558b8ea81ec6505f1e9a6ca283c9ae3 ### Impact Any Netty based HTTP server that uses the `HttpPostRequestDecoder` to decode a form.

4.1.108.Final
Affected by 0 other vulnerabilities.

Vulnerability	Summary	Aliases
VCID-guem-61xt-mycx	Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.	CVE-2021-43797 GHSA-wx5j-54mm-rqqq

Vulnerability

Summary

Aliases

VCID-guem-61xt-mycx

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.

CVE-2021-43797
GHSA-wx5j-54mm-rqqq

Date	Actor	Action	Vulnerability	Source	VulnerableCode Version
2025-07-03T19:01:49.683174+00:00	GitLab Importer	Affected by	VCID-bx4g-w9et-87hx	https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/io.netty/netty-codec-http/CVE-2024-29025.yml	37.0.0
2025-07-03T18:07:50.608929+00:00	GitLab Importer	Fixing	VCID-guem-61xt-mycx	https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/io.netty/netty-codec-http/CVE-2021-43797.yml	37.0.0
2025-07-01T14:30:49.389070+00:00	GHSA Importer	Fixing	VCID-guem-61xt-mycx	https://github.com/advisories/GHSA-wx5j-54mm-rqqq	36.1.3
2025-07-01T12:18:14.587311+00:00	GithubOSV Importer	Fixing	VCID-guem-61xt-mycx	https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/12/GHSA-wx5j-54mm-rqqq/GHSA-wx5j-54mm-rqqq.json	36.1.3