Envoy-CPU-Exhaustion-Vulnerability-PoC

Envoy CPU Exhaustion Vulnerability PoC This repository contains a proof-of-concept PoC Python script to demonstrate the CPU exhaustion vulnerability in Envoy caused by a flood of CONTINUATION frames. Author: blackmagic 2024 Description Envoy is a cloud-native, open-source edge and service proxy...

net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame

A flaw was found in the HTTP/2 protocol implementation within the Go standard library golang.org/x/net and net/http/internal/http2. A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGSMAXFRAMESIZE parameter set to zero. This...

CLEANSTART-2026-HC06922 When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0

CVE-2026-33814 affects multiple packages. When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0. See references for individual vulnerability details...

CLEANSTART-2026-EH49722 When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0

CVE-2026-33814 affects multiple packages. When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0. See references for individual vulnerability details...

AlmaLinux 9.2 [TuxCare] Security Update: libnghttp2 / libnghttp2-devel / nghttp2 (ALMALINUX9.2:CLSA-2025:1765381441)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1765381441 advisory. - nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading t...

Rocky Linux 8 [CIQ] Security Update: git-lfs / git-lfs-debuginfo / git-lfs-debugsource (crlsa-2024_2699)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20242699 advisory. golang: net/http, x/net/http2: unlimited number of CONTINUATION frames causes DoS CVE-2023-45288,VU421644.3 Tenable has extracted the preceding description block...

Rocky Linux 9 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource (crlsa-2024_1940)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20241940 advisory. Mozilla: Denial of Service using HTTP/2 CONTINUATION frames CVE-2024-3302 Tenable has extracted the preceding description block directly from the CIQ security...

Rocky Linux 9 [CIQ] Security Update: libnghttp2 / libnghttp2-debuginfo / libnghttp2-devel / nghttp2 / etc (crlsa-2024_3501)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20243501 advisory. nghttp2: CONTINUATION frames DoS CVE-2024-28182 Tenable has extracted the preceding description block directly from the CIQ security advisory. Note that Nessus has...

AlmaLinux 9.2 [TuxCare] Security Update: nodejs / nodejs-devel / nodejs-docs / nodejs-full-i18n / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1758294053)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1758294053 advisory. - The team has identified a critical vulnerability in the http server of the most recent version of Node, where malformed headers ca...

Rocky Linux 8 [CIQ] Security Update: libnghttp2 / libnghttp2-debuginfo / libnghttp2-devel / nghttp2 / etc (crlsa-2024_4252)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20244252 advisory. nghttp2: CONTINUATION frames DoS CVE-2024-28182 Tenable has extracted the preceding description block directly from the CIQ security advisory. Note that Nessus has...

Rocky Linux 8 [CIQ] Security Update: delve / delve-debuginfo / delve-debugsource / go-toolset / golang / etc (crlsa-2024_1962)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20241962 advisory. golang: net/http, x/net/http2: unlimited number of CONTINUATION frames causes DoS CVE-2023-45288 Tenable has extracted the preceding description block directly from...

CVE-2026-101881

OpenClaw Windows Node before 2026.7.1 contains an allocation of resources without limits vulnerability in the gateway WebSocket transport that allows connected gateways to exhaust node memory. Attackers can send an unending sequence of WebSocket continuation frames without EndOfMessage to cause...

CVE-2026-101881 OpenClaw Windows Node before 2026.7.1 Denial of Service

OpenClaw Windows Node before 2026.7.1 contains an allocation of resources without limits vulnerability in the gateway WebSocket transport that allows connected gateways to exhaust node memory. Attackers can send an unending sequence of WebSocket continuation frames without EndOfMessage to cause...

CVE-2026-101881 OpenClaw Windows Node before 2026.7.1 Denial of Service

OpenClaw Windows Node before 2026.7.1 contains an allocation of resources without limits vulnerability in the gateway WebSocket transport that allows connected gateways to exhaust node memory. Attackers can send an unending sequence of WebSocket continuation frames without EndOfMessage to cause...

EUVD-2026-90254

OpenClaw Windows Node before 2026.7.1 contains an allocation of resources without limits vulnerability in the gateway WebSocket transport that allows connected gateways to exhaust node memory. Attackers can send an unending sequence of WebSocket continuation frames without EndOfMessage to cause...

CVE-2026-101881

The OpenClaw Windows Node software, specifically versions before 2026.7.1 , is vulnerable to a Denial of Service (DoS) condition. The root cause is an allocation of resources without limits within the gateway WebSocket transport . An attacker can exploit this by sending an unending sequence of We...

net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame

A flaw was found in the HTTP/2 protocol implementation within the Go standard library golang.org/x/net and net/http/internal/http2. A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGSMAXFRAMESIZE parameter set to zero. This...

CLEANSTART-2026-NW24142 When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0

CVE-2026-33814 affects multiple packages. When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0. See references for individual vulnerability details...

Security Bulletin: Impacted IBM Optim 1.0.0, 1.1.0 and 1.2.0 by vulnerabilities in netty-codec-http, Keycloak, LIBPNG

Summary IBM Optim versions 1.0.0, 1.1.0 and 1.2.0 include open-source packages netty-codec-http, Keycloak and LIBPNG that are affected by high-severity vulnerabilities. IBM Optim 2.0.0 resolves these vulnerabilities by upgrading the affected open-source dependencies to a fixed version...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the H2Connection process. An attacker can exhaust heap memory and cause service disruption by sending HTTP/2 HEADERS or PUSHPROMISE frames without ENDHEADERS, followed by unbounded...