CVE-2026-42577

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...

Linux Distros Unpatched Vulnerability : CVE-2026-42577

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

DEBIAN-CVE-2026-42577

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...

CVE-2026-42577

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...

CVE-2026-42577 Netty: epoll transport denial of service via RST on half-closed TCP connection

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...

CVE-2026-42577 Netty: epoll transport denial of service via RST on half-closed TCP connection

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...

CVE-2026-42577 Netty: epoll transport denial of service via RST on half-closed TCP connection

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...

CVE-2026-42577

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...

CVE-2026-42577

Technical details are not publicly available in the provided documents; monitor for updates.

Netty security vulnerabilities

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...

GHSA-RWM7-X88C-3G2P Netty epoll transport denial of service via RST on half-closed TCP connection

Summary 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% CPU busy-loop in the event loop thread. Affected versions All versions of 4.2.x...

Netty epoll transport denial of service via RST on half-closed TCP connection

Summary 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% CPU busy-loop in the event loop thread. Affected versions All versions of 4.2.x...

📄 Lighttpd 1.4.66 FastCGI Resource Exhaustion

Proof of concept exploit for a resource exhaustion vulnerability that exists in lighttpd versions 1.4.56 through 1.4.66 affecting FastCGI and other gateway backends. When processing HTTP/1.1 requests using chunked transfer encoding with request-body streaming enabled, an anomalous client disconne...

📄 Lighttpd 1.4.66 Resource Leak Denial of Service

Lighttpd versions 1.4.56 through 1.4.66 has a resource exhaustion vulnerability affecting gateway backends such as FastCGI. When handling an HTTP/1.1 request with chunked transfer encoding and request-body streaming enabled, lighttpd mishandles an anomalous client disconnect RDHUP / half-closed T...

Lighttpd 1.4.56 - 1.4.66 Resource Leak Denial of Service PoC

Summary lighttpd pronounced /lighty/ is a secure, fast, compliant, and very flexible web server that has been optimized for high-performance environments. lighttpd uses memory and CPU efficiently and has lower resource use than other popular web servers. Its advanced feature-set FastCGI, CGI, Aut...

PT-2025-34149

Name of the Vulnerable Software and Affected Versions: Eclipse Jetty versions =9.4.57 Eclipse Jetty versions =10.0.25 Eclipse Jetty versions =11.0.25 Eclipse Jetty versions =12.0.21 Eclipse Jetty version 12.1.0.alpha2 Description: An HTTP/2 client can trigger the server to send RST STREAM frames ...

GHSA-PRJ3-CCX8-P6X4 Netty affected by MadeYouReset HTTP/2 DDoS vulnerability

Below is a technical explanation of a newly discovered vulnerability in HTTP/2, which we refer to as “MadeYouReset.” MadeYouReset Vulnerability Summary The MadeYouReset DDoS vulnerability is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to brea...

Netty affected by MadeYouReset HTTP/2 DDoS vulnerability

Below is a technical explanation of a newly discovered vulnerability in HTTP/2, which we refer to as “MadeYouReset.” MadeYouReset Vulnerability Summary The MadeYouReset DDoS vulnerability is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to brea...

Alteon AceDirector Half-Closed HTTP Request IP Address Revealing Vulnerabililty

No description provided by source. source: http://www.securityfocus.com/bid/3964/info Alteon ACEdirector is a hardware solution distributed by Nortel Networks. ACEdirector runs the Nortel WebOS operating system. It is possible to retrieve the real IP addresses of webservers that are managed by an...

CVE-2007-2704: Undefined Security Weakness

BEA WebLogic Server 9.0 through 9.2 allows remote attackers to cause a denial of service SSL port unavailability by accessing a half-closed SSL socket...