CVE-2026-65637

Apache Tomcat contains an improper input validation vulnerability in its HTTP/2 implementation where the fix for CVE-2026-32990 (strict SNI validation) was incomplete, allowing a no-authority bypass of strict SNI validation . The issue affects 11.0.20–11.0.24 , 10.1.53–10.1.57 , and 9.0.115–9.0.1...

CVE-2026-65637 Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete

Improper Input Validation vulnerability in Apache Tomcat due to incomplete fix for CVE-2026-32990. This issue affects Apache Tomcat: from 11.0.20 through 11.0.24, from 10.1.53 through 10.1.57, from 9.0.115 through 9.0.120. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121,...

Security Bulletin: Vulnerability in Netty affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.

Summary Potential vulnerability in Netty has been identified that affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component. . The vulnerability have been addressed. Refer to details for additional information. Vulnerability...

Security Bulletin: Vulnerability in Netty affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.

Summary Potential vulnerability in Netty has been identified that affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component. . The vulnerability have been addressed. Refer to details for additional information. Vulnerability...

ROOT-OS-DEBIAN-12-CVE-2026-58055 CVE-2026-58055 in nghttp2 - Patched by Root

Root has patched CVE-2026-58055 in the nghttp2 package for Root:Debian:12. Multiple fixed versions available...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.22.11 security and extras update

Red Hat OpenShift Container Platform release 4.22.11 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.22. Red Hat Product Security has rated this update as having a security impact of...

nginx:1.26 security update

1.26.3-9.0.1.3 - Require oracle-indexhtml 2:1.26.3-13 - Fixes CVE-2026-56434 and CVE-2026-60005 2:1.26.3-12 - Resolves: RHEL-191774 - nginx: 'HTTP/2 bomb' nginx fix breaks module ABI causing crashes 2:1.26.3-11 - nginx:1.26/nginx: HTTP/2: Remote Denial of Service via compression bomb and...

nginx:1.24 security update

1.24.0-3.4.0.1 - Remove Red Hat references Orabug: 29498217 1:1.24.0-3.4 - Resolves: RHEL-217957 - nginx:1.24/nginx: NGINX: Memory disclosure and denial of service in ngxhttpslicemodule CVE-2026-60005 - Resolves: RHEL-219309 - nginx:1.24/nginx: NGINX: Heap buffer over-read allows memory...

nginx security update

1.26.3-6.0.1.el102.6 - Reference oracle-indexhtml within Requires Orabug: 33802044 2:1.26.3-6.6 - Resolves: RHEL-219313 - nginx: NGINX: Heap buffer over-read allows memory modification or denial of service CVE-2026-56434 - Resolves: RHEL-217956 - nginx: NGINX: Memory disclosure and denial of...

PT-2026-81889

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.24 Apache Tomcat versions 10.1.0-M1 through 10.1.57 Apache Tomcat versions 9.0.39 through 9.0.120 Apache Tomcat versions 8.5.59 through 8.5.100 Description An uncontrolled resource consumption issu...

Oracle Linux 10 : nginx (ELSA-2026-59220)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-59220 advisory. - Resolves: RHEL-219313 - nginx: NGINX: Heap buffer over-read allows memory modification or denial of service CVE-2026-56434 - Resolves: RHEL-217956 ...

ROOT-OS-DEBIAN-13-CVE-2026-58055 CVE-2026-58055 in nghttp2 - Patched by Root

Root has patched CVE-2026-58055 in the nghttp2 package for Root:Debian:13. Multiple fixed versions available...

Astra Linux – Vulnerability in Node.js

A memory leak occurs in Node.js HTTP/2 servers when a client sends WINDOWUPDATE frames on stream 0 connection-level that cause the flow control window to exceed the maximum value of 2³¹-1. The server correctly sends a GOAWAY frame, but the Http2Session object is never cleaned up. This vulnerabili...

Astra Linux – Vulnerability in golang-golang-x-net, golang-1.19

An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request’s headers exceed MaxHeaderBytes, no...

Astra Linux – Vulnerability in golang-golang-x-net

In net/http in Go, before versions 1.18.6 and 1.19.x, and before version 1.19.1, attackers can cause a denial of service because an HTTP/2 connection may become unresponsive during closure, if the shutdown process is interrupted by a fatal error...

Exploit for Memory Allocation with Excessive Size Value in Apache Http_Server

CVE-2026-49975 HTTP/2 Bomb ★ CVE-2026-49975 HTTP/2 Bomb PoC ★...

cowlib: Cowlib: Denial of Service due to unbounded HPACK/QPACK prefixed-integer decoding

A flaw was found in cowlib, an HTTP parser. An unauthenticated remote attacker could exploit this vulnerability by sending specially crafted HTTP/2 or HTTP/3 frames containing oversized HPACK or QPACK prefixed integers. This unbounded decoding process leads to excessive memory allocation and...

CVE-2026-74836

Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows an unauthenticated remote attacker to pin an unbounded number of HTTP/2 stream processes indefinitely via connection-level flow control. When a stream's response body outruns the HTTP/2 connection-level se...

CVE-2026-75484

Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in mtrudel bandit allows an unauthenticated remote attacker to smuggle CR, LF, or NUL characters into application-visible request headers via HTTP/2. Bandit.HTTP2.Stream.readheaders/1 validates pseudo-header placement and...

EUVD-2026-63661

Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in mtrudel bandit allows an unauthenticated remote attacker to smuggle CR, LF, or NUL characters into application-visible request headers via HTTP/2. Bandit.HTTP2.Stream.readheaders/1 validates pseudo-header placement and...