CVE-2026-42581

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for HTTP/1.1 messages. The guard is absen...

CVE-2026-42581

Netty vulnerability CVE-2026-42581 affects Netty in HTTP handling. Before 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder does not clear a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length for HTTP/1.1; HTTP/1.0 requests lack this guard....

CVE-2026-42581 Netty: HTTP/1.0 TE+CL Coexistence Bypasses Smuggling Sanitization

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for HTTP/1.1 messages. The guard is absen...

CVE-2026-42581

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for HTTP/1.1 messages. The guard is absen...

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-2026-42581 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-2026-42581 Source advisory: MEND:CVE-2026-42581...

CVE-2026-42581 Netty: HTTP/1.0 TE+CL Coexistence Bypasses Smuggling Sanitization

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for HTTP/1.1 messages. The guard is absen...

Netty 安全漏洞

Netty is a non-blocking I/O client-server framework developed by the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty prior to 4.2.13.Final contained security vulnerabilities. These vulnerabilities stemmed from...

Netty 输入验证错误漏洞

Netty is a non-blocking I/O client-server framework from the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty prior to 4.2.13.Final and 4.1.133.Final contain a vulnerability related to input validation errors...

Netty 环境问题漏洞

Netty is a non-blocking I/O client-server framework from the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty prior to 4.2.13.Final and 4.1.133.Final contained environmental issues. These issues were caused by...

CVE-2026-42578: Improper Neutralization of CRLF Sequences in HTTP Headers

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's HttpProxyHandler constructs HTTP CONNECT requests with header validation explicitly disabled. The newInitialMessage method creates headers using...

CVE-2026-42577: Missing Release of Resource after Effective Lifetime

Netty is an asynchronous, event-driven network application framework. From 4.2.0.Final to 4.2.13.Final , Netty's epoll transport fails to detect and close TCP connections that receive a RST after being half-closed, leading to stale channels that are never cleaned up and, in some code paths, a 100...

Netty 注入漏洞

Netty is a non-blocking I/O client-server framework developed by the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty prior to 4.2.13.Final and 4.1.133.Final contained an injection vulnerability. This...

Netty 资源管理错误漏洞

Netty is a non-blocking I/O client-server framework from the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty prior to 4.2.13.Final and 4.1.133.Final contained a resource management vulnerability. This...

Netty 输入验证错误漏洞

Netty is a non-blocking I/O client-server framework developed by the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty prior to 4.2.13.Final and 4.1.133.Final contained a vulnerability related to input validatio...

CVE-2026-42579: Improper Input Validation

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's DNS codec does not enforce RFC 1035 domain name constraints during either encoding or decoding. This creates a bidirectional attack surface: malicious DNS responses can exploit t...

Netty 注入漏洞

Netty is a non-blocking I/O client-server framework developed by the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty prior to 4.2.13.Final and 4.1.133.Final contained an injection vulnerability. This...

CVE-2026-44248: Uncontrolled Resource Consumption

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariableHeader method is called before the...

CVE-2026-42584: Inconsistent Interpretation of HTTP Requests

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpClientCodec pairs each inbound response with an outbound request by queue.poll once per response, including for 1xx. If the client pipelines GET then HEAD and the server sends 103,...

Netty 环境问题漏洞

Netty is a non-blocking I/O client-server framework from the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty prior to 4.2.13.Final and 4.1.133.Final contained environmental issues. These issues stemmed from...

Netty 安全漏洞

Netty is a non-blocking I/O client-server framework developed by the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty from 4.2.0.Final to 4.2.13.Final contain security vulnerabilities. These vulnerabilities ste...