CVE-2026-26233

Mattermost versions 11.4.x = 11.4.0, 11.3.x = 11.3.1, 11.2.x = 11.2.3, 10.11.x = 10.11.11 fail to rate limit login requests which allows unauthenticated remote attackers to cause denial of service server crash and restart via HTTP/2 single packet attack with 100+ parallel login requests...

CVE-2026-26233

Mattermost versions 11.4.x = 11.4.0, 11.3.x = 11.3.1, 11.2.x = 11.2.3, 10.11.x = 10.11.11 fail to rate limit login requests which allows unauthenticated remote attackers to cause denial of service server crash and restart via HTTP/2 single packet attack with 100+ parallel login requests...

Denial of Service via "MadeYouReset" vulnerability

Versions of amphp/http-server prior to 3.4.4 for the 3.x release branch and prior to 2.1.10 for the 2.x release branch are vulnerable to the HTTP/2 "MadeYouReset" DoS attack described by CVE-2025-8671 and https://kb.cert.org/vuls/id/767506. In versions 3.4.4 and 2.1.10, stream reset protection ha...

CVE-2023-53809

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

Security Bulletin: Netty HTTP/2 MadeYouReset Vulnerability Allows Bypass of Max Concurrent Streams, Enabling DDoS Attacks, affects watsonx.data

Summary Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max...

Security Bulletin: IBM Maximo Application Suite - Monitor Component uses WebSphere Application Server Liberty which is affected by a denial of service with HTTP/2 and vulnerable to CVE-2025-36047.

Summary IBM Maximo Application Suite - Monitor Component uses WebSphere Application Server Liberty which is affected by a denial of service with HTTP/2 and vulnerable to CVE-2025-36047. This bulletin contains information regarding the vulnerability and its fixture. Vulnerability Details...

Security Bulletin: IBM Maximo Application Suite - Monitor Component uses netty-codec-http2-4.2.2.Final.jar which is vulnerable to CVE-2025-55163.

Summary IBM Maximo Application Suite - Monitor Component uses netty-codec-http2-4.2.2.Final.jar which is vulnerable to CVE-2025-55163. This bulletin contains information regarding the vulnerability and its fixture. Vulnerability Details CVEID:CVE-2025-55163 DESCRIPTION: Netty is an asynchronous,...

Ubuntu: Security Advisory (USN-7892-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Silabs RS9116W 安全漏洞

Silabs RS9116W is a wireless connectivity module from Silabs USA. A security vulnerability exists in the Silabs RS9116W, which originates from the reception of malformed L2CAP packets that could lead to a denial of service attack...

CVE-2025-61752

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware component: Core. Supported versions that are affected are 14.1.1.0.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Oracle WebLogic Server...

[SECURITY] Fedora 41 Update: mod_http2-2.0.35-1.fc41

The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of libnghttp2 for httpd 2.4 servers...

[SECURITY] Fedora 42 Update: mod_http2-2.0.35-1.fc42

The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of libnghttp2 for httpd 2.4 servers...

EUVD-2021-6775

Malicious code in bioql PyPI...

Security Bulletin: Vulnerabilities in Netty-codec and Netty-handler might affect IBM Storage Defender Copy Data Management

Summary IBM Storage Defender Copy Data Management can be affected by vulnerabilities in Netty-codec and Netty-handler. Vulnerabilities include an incorrect validation of special crafted packet via SslHandler can lead to a native crash, the SniHandler can allocate up to 16MB of heap for each chann...

Moderate: mod_http2 security update

The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of libnghttp2 for httpd 2.4 servers. Security Fixes: httpd: modproxyhttp2: untrusted input from a client causes an assertion to fail in the Apache modproxyhttp2 module CVE-2025-49630 For more details about the security...

RHEL 10 : mod_http2 (RHSA-2025:14625)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2025:14625 advisory. The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of libnghttp2 for httpd 2.4 servers. Security Fixes: httpd: modproxyhttp2...

Security update for tomcat11

This update for tomcat11 fixes the following issues: Updated to Tomcat 11.0.9 - CVE-2025-52520: Fixed integer overflow can lead to DoS for some unlikely configurations of multipart upload bsc1246388 - CVE-2025-53506: Fixed uncontrolled resource HTTP/2 client consumption vulnerability bsc1246318...

DEBIAN-CVE-2025-5115

In Eclipse Jetty, versions =9.4.57, =10.0.25, =11.0.25, =12.0.21, =12.1.0.alpha2, an HTTP/2 client may trigger the server to send RSTSTREAM frames, for example by sending frames that are malformed or that should not be sent in a particular stream state, therefore forcing the server to consume...

Rockwell Automation FLEX 5000 安全漏洞

Rockwell Automation FLEX 5000 is a high-speed counter module from Rockwell Automation. A resource management error vulnerability exists in the Rockwell Automation FLEX 5000 that stems from incorrect processing of a CIP Class 32 request causing the module to enter a fault state. No details of the...

tomcat: Apache Tomcat denial of service

A denial of service flaw was found in Apache Tomcat. A race condition during connection closure could trigger a JVM crash when using the APR/Native connector, leading to a denial of service. This issue was particularly noticeable with client-initiated closures of HTTP/2 connections...