CVE-2025-53020-PoC

CVE-2025-53020 - Apache httpd HTTP/2 Memory Exhaustion PoC A proof of concept demonstrating CVE-2025-53020, a memory exhaustion vulnerability in Apache httpd's HTTP/2 implementation I found in mid-2025. 📖 Deep dive : galbarnahum.com/posts/apache-httpd-cve-2025-53020 Vulnerability Overview Apache...

HTTP-2-Rapid-Reset-DDos

Ataque DoS de Restablecimiento Rápido de HTTP/2 Descripción Este proyecto demuestra el ataque de Denegación de Servicio DoS por Restablecimiento Rápido de HTTP/2 utilizando una topología de red personalizada creada con Containernet. El ataque explota vulnerabilidades en el protocolo HTTP/2 para...

CVE-2023-44487-HTTP-2-Rapid-Reset-Attack

PoC - CVE-2023-44487: HTTP/2 Rapid Reset Attack This repository contains a Proof of Concept PoC to demonstrate the exploitation of the vulnerability CVE-2023-44487 , also known as HTTP/2 Rapid Reset Attack. This vulnerability affects the HTTP/2 protocol and allows an attacker to overload web...

HTTP-2-RapidReset-CVE-2023-44487-Testlab

This repo is the source code of my docker lab, made for my thesis research...

CVE-2026-42945

CVE-2026-42945 PoC Go 中文 | English A detection and exploitation helper for nginx HTTP/2 CVE-2026-42945. Use it only in authorized environments to verify vulnerability presence, compare patched vs. vulnerable behavior, and reproduce PoC logic in a controlled lab. Affected versions heuristic: nginx...

CVE-2019-9511_Priority-Churn-Data-Dribble

HTTP/2 CVE-2019-9511 & CVE-2019-9513 Lightweight Probes Repository with controlled validation scripts for behaviors associated with CVEs CVE-2019-9511 and CVE-2019-9513 , both related to denial of service vectors in HTTP/2 implementations. The scripts were created to support technical validations...

tomcat-embed-core-9.0.31-CVE-2020-11996

Por favor, consulte el PoC en la prueba unitaria testImplicitCloseLargeId de TestHttp2Section51.java: https://github.com/rusakovichma/tomcat-embed-core-9.0.31-CVE-2020-11996/blob/master/test/org/apache/coyote/http2/TestHttp2Section51.java...

CVE-2026-49975-HTTP-2-Bomb

A triage not exploitation tool to identify attack surfaces exposed to CVE-2026-49975 — "HTTP/2 Bomb". ⚠️ This script does not send attack payloads. It only makes normal HTTP requests and analyzes response headers to flag hosts that warrant manual version/patch verification. About CVE-2026-49975...

BIT-TOMCAT-2026-78437 Apache Tomcat: HTTP/2 DoS via malformed request

Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially depends on timing cause one request from another user to fail. This issue affects Apache Tomcat: from 11.0.19 through 11.0.25, from 10.1.53 through 10.1.59, from 9.0.116 through 9.0.121. Users are...

BIT-TOMCAT-2026-77762 Apache Tomcat: Stale HPACK emitter injects trailers into recycled pooled Request

Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition' vulnerability in Apache Tomcat allows an attacker to inject trailer fields into another HTTP/2 request. This issue affects Apache Tomcat: from 11.0.0 through 11.0.25, from 10.1.0 through 10.1.59, from 9.0.39...

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...

CVE-2026-23918-Passive-Audit

CVE-2026-23918 audit script alternatively you could just curl the headers and take a peek, but here comes the: Non-invasive HTTP metadata auditor for Apache HTTP Server CVE-2026-23918 https://www.openwall.com/lists/oss-security/2026/05/04/19 exposure triage. The tool sends ordinary HTTP HEAD/GET...

CLEANSTART-2025-MG51423 HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023

CVE-2023-44487 affects multiple packages. The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. See references for individual vulnerability details...

CLEANSTART-2024-IW99789 Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service

Security vulnerability affects the nghttp2 package. Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service...

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...

CLEANSTART-2026-WX23354 In Eclipse Jetty, for HTTP/1, HTTP/2 and HTTP/3 requests, there is no strict check that the request authority (host and port) matches what provided in the Host header (if present)

Security vulnerability affects the apache-nifi package. In Eclipse Jetty, for HTTP/1, HTTP/2 and HTTP/3 requests, there is no strict check that the request authority host and port matches what provided in the Host header if present...

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 10.1 [CIQ] Security Update: libnghttp2 / libnghttp2-debuginfo / libnghttp2-devel / nghttp2 / etc (crlsa-2026_7666)

The Rocky Linux 10.1 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20267666 advisory. nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination CVE-2026-27135 Tenable has extracted the preceding description block...

Rocky Linux 9.6 [TuxCare] Security Update: nodejs / nodejs-devel / nodejs-docs / nodejs-full-i18n / etc (ALMALINUX9.6:CLSA-2026:1776939108)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1776939108 advisory. - 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...

Rocky Linux 9 [CIQ] Security Update: varnish / varnish-devel / varnish-docs (crlsa-2024_1691)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20241691 advisory. varnish: HTTP/2 Broken Window Attack may result in denial of service CVE-2024-30156 Tenable has extracted the preceding description block directly from the CIQ...