Netty: Start-Line Injection in DefaultHttpRequest.setUri() Allows HTTP Request Smuggling and RTSP Request Injection

Summary Netty allows request-line validation to be bypassed when a DefaultHttpRequest or DefaultFullHttpRequest is created first and its URI is later changed via setUri. The constructors reject CRLF and whitespace characters that would break the start-line, but setUri does not apply the same...

HTTP Request Smuggling

Overview io.netty:netty-codec-http is a network application framework for rapid development of maintainable high performance protocol servers & clients. Affected versions of this package are vulnerable to HTTP Request Smuggling in the setUri function. An attacker can inject arbitrary CRLF sequenc...

ai.catboost:catboost-spark_4.1_2.13 (1.2.10), ai.new-wave:spring-agent-app (>=0.1.0, <=0.3.0) +4650 more potentially affected by CVE-2026-41417 via io.netty:netty-codec-http (>=4.2.0.alpha1, <=4.2.12.final)

io.netty:netty-codec-http MAVEN version =4.2.0.alpha1, =0.1.0, =0.1.0, =4.13.5, =4.9.0, =4.9.0, =4.5.0, =4.5.0, =4.9.0, =4.9.0, =4.9.0, =4.9.0, =4.9.0, =4.9.2 and more Source cves: CVE-2026-41417 Source advisory: OSV:GHSA-V8H7-RR48-VMMV...

CVE-2026-42584

creationtimestamp| type| source ---|---|--- 2026-05-05 18:11:31+00:00| published-proof-of-concept| https://github.com/netty/netty/security/advisories/GHSA-57rv-r2g8-2cj3...

CVE-2026-42583

creationtimestamp| type| source ---|---|--- 2026-05-05 18:10:58+00:00| published-proof-of-concept| https://github.com/netty/netty/security/advisories/GHSA-mj4r-2hfc-f8p6...

CVE-2026-42582

creationtimestamp| type| source ---|---|--- 2026-05-05 18:10:33+00:00| published-proof-of-concept| https://github.com/netty/netty/security/advisories/GHSA-2c5c-chwr-9hqw 2026-07-10 18:03:56+00:00| seen| https://bsky.app/profile/kriptabiz.bsky.social/post/3mqcqcal5lt2e...

CVE-2026-42579

creationtimestamp| type| source ---|---|--- 2026-05-05 18:10:10+00:00| published-proof-of-concept| https://github.com/netty/netty/security/advisories/GHSA-cm33-6792-r9fm...

CVE-2026-42585

creationtimestamp| type| source ---|---|--- 2026-05-05 18:09:42+00:00| published-proof-of-concept| https://github.com/netty/netty/security/advisories/GHSA-38f8-5428-x5cv...

CVE-2026-42580

creationtimestamp| type| source ---|---|--- 2026-05-05 18:09:16+00:00| published-proof-of-concept| https://github.com/netty/netty/security/advisories/GHSA-m4cv-j2px-7723...

CVE-2026-42581

creationtimestamp| type| source ---|---|--- 2026-05-05 18:08:44+00:00| published-proof-of-concept| https://github.com/netty/netty/security/advisories/GHSA-xxqh-mfjm-7mv9...

CVE-2026-42578

creationtimestamp| type| source ---|---|--- 2026-05-05 18:05:31+00:00| published-proof-of-concept| https://github.com/netty/netty/security/advisories/GHSA-45q3-82m4-75jr...

PT-2026-38377

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.2.13.Final Netty versions prior to 4.1.133.Final Description Netty incorrectly parses malformed Transfer-Encoding headers, which can lead to request smuggling attacks. Specifically, the framework incorrectly marks a...

PT-2026-37246

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.133.Final Netty versions prior to 4.2.13.Final Description Request-line validation can be bypassed when a DefaultHttpRequest or DefaultFullHttpRequest is created and its URI is subsequently modified using the setUri...

PT-2026-54550

Уязвимость компонента io.netty.handler.codec.dns.DnsCodecUtil фреймворка для разработки сетевых приложений, серверов и клиентов протоколов Netty связана с выходом операции за границы буфера в памяти. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в...

PT-2026-38360

Name of the Vulnerable Software and Affected Versions Netty affected versions not specified Description A resource exhaustion issue exists in the decode function of the io.netty.handler.codec.compression.Lz4FrameDecoder class. The decoder trusts header fields to determine buffer sizing,...

PT-2026-38378

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.133.Final Netty versions prior to 4.2.13.Final Description The Netty Redis codec encoder RedisEncoder writes user-controlled string content directly to the network output buffer without validating or sanitizing CRLF...

PT-2026-38373

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.2.13.Final Netty versions prior to 4.1.133.Final Description Netty's chunk size parser silently overflows an integer, which allows for request smuggling attacks. This occurs within the getChunkSize function of the...

PT-2026-38371

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.133.Final Netty versions prior to 4.2.13.Final Description Netty's HttpProxyHandler constructs HTTP CONNECT requests with header validation explicitly disabled. The newInitialMessage function creates headers using...

PT-2026-38372

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.133.Final Netty versions prior to 4.2.13.Final Description Netty's DNS codec fails to enforce RFC 1035 domain name constraints during encoding and decoding, creating a bidirectional attack surface. In the encoder, t...

PT-2026-38374

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.133.Final Netty versions prior to 4.2.13.Final Description In the HttpObjectDecoder component, the software fails to strip the Content-Length header when an HTTP/1.0 request contains both Transfer-Encoding: chunked...