HTTP3ONSTEROIDS

Tabla de contenido Descripción de la vulnerabilidad Revisión del código fuente Configuración del laboratorio Identificación del problema Referencias Descripción de la vulnerabilidad La implementación de HTTP/3 de HAProxy no consigue bloquear un nombre de campo de cabecera HTTP malformado y, cuand...

HTTP3-attacks

HTTP3-attacks CVE-2022-30592 Basado en el trabajo: E. Chatzoglou, V. Kouliaridis, G. Kambourakis, G. Karopoulos, y S. Gritzalis,"A hands-on gaze on HTTP/3 security through the lens of HTTP/2 and a public dataset", Computers & Security, p. 103051, 2022. El presente repositorio tiene como finalidad...

ssh3

!NOTE SSH3 可能会更改名称。它仍然是运行在 HTTP/3 扩展连接之上的 SSH 连接协议 RFC4254，但所需的更改非常重大，且与流行 SSH 实现的设计理念相距甚远，因此难以考虑集成。规范草案已经重命名为 "Remote Terminals over HTTP/3"，但我们需要一些时间来想出一个好听的永久名称。 SSH3: 使用 HTTP/3 实现更快、更丰富的安全 Shell SSH3 是对 SSH 协议的彻底重新审视，将其语义映射到 HTTP 机制之上。它源自我们的研究工作，我们（研究人员）最近将其作为 Internet-Draft...

CVE-2026-33555

Bypass de Validación del Cuerpo FIN Standalone en HAProxy H3/QUIC para Contrabando de Solicitudes HTTP Publicación completa aquí : https://r3verii.github.io/cve/2026/04/14/haproxy-h3-standalone-fin-smuggling.html Resumen Una vulnerabilidad en la implementación HTTP/3 de HAProxy permite a un...

CVE-2026-4253-Scanner

CVE-2026-42530 — Escáner Safe-Check Escáner masivo no destructivo para el use-after-free de NGINX HTTP/3 QUIC Inventario de qué hosts están expuestos — sin desencadenar el fallo. ⚠️ Aviso legal Esta herramienta es solo para pruebas de seguridad autorizadas — tu propia infraestructura o sistemas...

DEBIAN-CVE-2026-90439

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner th...

K000162604: NGINX ngx_http_v3_module vulnerability CVE-2026-90439

Security Advisory Description NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions 3.5.0 and earlier under certain configurations, a limited heap buffer overflow could happen while processing a Transport Layer Security TLS...

CVE-2026-42530

CVE-2026-42530 Scanner para CVE-2026-42530, un uso después de liberar en el módulo HTTP/3 de nginx. Afectado: nginx 1.31.0, 1.31.1 Corregido: nginx 1.31.2 Uso root@kitploit: pip install aioquic python3 scannerCVE-2026-42530.py port python3 scannerCVE-2026-42530.py --file hosts.txt Cómo funciona...

CVE-2026-56816

A flaw was found in Netty. An unauthenticated remote attacker can exploit a vulnerability in Netty's Http3FrameCodec by sending specially crafted HTTP/3 reserved frames with excessive payload lengths. This can lead to uncontrolled memory buffering, causing memory exhaustion and a denial of servic...

CVE-2026-42530

🛡️ CVE-2026-42530 - Vulnerabilidad de Use-After-Free en NGINX HTTP/3 QUIC Use-After-Free de Alta Gravedad en NGINX HTTP/3 QUIC ⚠️ Vulnerabilidad del Flujo del Codificador QPACK 🔍 Resumen CVE-2026-42530 es una vulnerabilidad de use-after-free en el módulo de NGINX...

PT-2026-92035

NGINX Plus and NGINX Open Source have a vulnerability in the ngx http v3 module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner...

EUVD-2026-77618

webtransport-go is an implementation of the WebTransport protocol. Prior to 0.11.1, Session.parseNextCapsule in session.go skips an unknown WebTransport capsule on the HTTP/3 request stream by calling io.ReadAll on the capsule reader, retaining the complete declared capsule body in memory. A...

CVE-2026-57497 webtransport-go: Memory Exhaustion Attack due to Buffering of Unknown Capsules

webtransport-go is an implementation of the WebTransport protocol. Prior to 0.11.1, Session.parseNextCapsule in session.go skips an unknown WebTransport capsule on the HTTP/3 request stream by calling io.ReadAll on the capsule reader, retaining the complete declared capsule body in memory. A...

CVE-2026-57497 webtransport-go: Memory Exhaustion Attack due to Buffering of Unknown Capsules

webtransport-go is an implementation of the WebTransport protocol. Prior to 0.11.1, Session.parseNextCapsule in session.go skips an unknown WebTransport capsule on the HTTP/3 request stream by calling io.ReadAll on the capsule reader, retaining the complete declared capsule body in memory. A...

CVE-2026-90678

A flaw was found in HAProxy. A remote, unauthenticated attacker can exploit a vulnerability in the HTTP/3 multiplexer when processing requests without a Content-Length header, leading to HTTP request smuggling. This occurs when HAProxy is configured with QUIC support and an HTTP/3 frontend, and...

Linux Distros Unpatched Vulnerability : CVE-2026-90678

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QU...

CVE-2026-90678

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

CVE-2026-90678

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

UBUNTU-CVE-2026-90678

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

EUVD-2026-76943

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...