cve-2026-49975-http2bomb_reproduction

CVE-2026-49975 HTTP/2 Bomb Complete Reproduction Guide Based on QiAnXin CERT Advisory + Calif Original Research ================================================================ I. Vulnerability Overview CVE-2026-49975 is a critical denial-of-service DoS vulnerability in HTTP/2 server and proxy...

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...

http2-bomb-detector

http2-bomb-detector HTTP/2 Bomb CVE-2026-49975 Non-destructive vulnerability detection tool — for Nginx / Apache httpd Vulnerability Background CVE-2026-49975 is a widespread remote denial-of-service vulnerability in the HTTP/2 protocol layer, discovered by security researcher Quang Luong. This...

CVE-2026-49975

CVE-2026-49975 HTTP/2 Bomb ★ CVE-2026-49975 HTTP/2 Bomb PoC ★ Overview CVE-2026-49975 is a Denial of Service DoS vulnerability in Apache HTTP Server. The vulnerability occurs in the HTTP/2 request handling path, where multiple cookie header fields can be merged without being properly counted...

Proof-of-Concept-POC---CVE-2026-49975-HTTP-2-Bomb-

CVE-2026-49975 - HTTP/2 Bomb Proof of Concept Description CVE-2026-49975, also known as HTTP/2 Bomb , is a remote denial-of-service DoS vulnerability that affects most major web servers in their default HTTP/2 configuration. The vulnerability was discovered by OpenAI Codex by combining two...

GHSA-CJCG-CXMH-9WCR Praxis affected by HTTP/2 Bomb

Summary Multiple denial-of-service vulnerabilities have been discovered in HTTP/2 server implementations. All have been rated with a severity impact of Important. The vulnerabilities target HPACK, the header compression scheme in HTTP/2, where a small request can trigger large memory allocations ...

CentOS Linux 6 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / nginx-mod-http-geoip / etc (CENTOS6:CLSA-2026:1783633126)

The CentOS Linux 6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS6:CLSA-2026:1783633126 advisory. - Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP request...

CentOS Linux 8.5 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / etc (CENTOS8.5:CLSA-2026:1782317575)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2026:1782317575 advisory. - Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

CentOS Linux 8.4 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / etc (CENTOS8.4:CLSA-2026:1782317138)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1782317138 advisory. - Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

Rocky Linux 9.6 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc (ALMALINUX9.6:CLSA-2026:1781511735)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1781511735 advisory. - Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

AlmaLinux 9.6 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc (ALMALINUX9.6:CLSA-2026:1781511735)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1781511735 advisory. - Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

Rocky Linux 9.6 [TuxCare] Security Update: mod_http2 (ALMALINUX9.6:CLSA-2026:1781259837)

The Rocky Linux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1781259837 advisory. - Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

AlmaLinux 9.6 [TuxCare] Security Update: mod_http2 (ALMALINUX9.6:CLSA-2026:1781259837)

The AlmaLinux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1781259837 advisory. - Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

CentOS Linux 8 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / etc (CENTOS-STREAM8:CLSA-2026:1782317620)

The CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2026:1782317620 advisory. - Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

CentOS Linux 7 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / nginx-mod-devel / etc (CENTOS7:CLSA-2026:1783791996)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1783791996 advisory. - Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP request...

nginx:1.26 security update

1.26.3-9.4.0.1 - Require oracle-indexhtml 2:1.26.3-14 - Fixes CVE-2026-42533 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 Servic...

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...

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...

HTTP/2 Bomb CVE-2026-49975

...

CVE-2026-10725: Improper Handling of Highly Compressed Data (Data Amplification)

Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb. Protocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory the "HTTP/2 bomb". The headersdecode method materialises a full key+value copy per indexe...