HTTP3-attacks

HTTP3-attacks CVE-2022-30592 基于以下研究：E. Chatzoglou, V. Kouliaridis, G. Kambourakis, G. Karopoulos 和 S. Gritzalis，"通过HTTP/2的视角审视HTTP/3安全及一个公共数据集", Computers & Security, p. 103051, 2022。...

ssh3

!NOTE SSH3は名称変更の可能性があります。依然としてSSH接続プロトコル（RFC4254）をHTTP/3 Extended Connect上で動作させるものですが、変更内容は大きく、一般的なSSH実装の哲学からかけ離れているため、統合を検討するのは難しい状況です。仕様ドラフトは既に名称変更されています（「HTTP/3上のリモート端末」）が、適切な恒久的な名前を決めるには時間が必要です。 SSH3: HTTP/3 を用いたより高速でリッチなセキュアシェル...

HTTP3ONSTEROIDS

目录 漏洞描述 源码审查 实验环境搭建 识别问题 参考 漏洞描述 HAProxy 的 HTTP/3 实现未能阻止格式错误的 HTTP 头部字段名 ，并且当部署在错误处理此格式错误头部的前端服务器之前时 ，可能被用于发起 HTTP 请求/响应走私攻击。远程攻击者可能篡改合法用户的请求。因此，攻击者可能获取敏感信息或造成拒绝服务 DoS 状况。 https://jvn.jp/en/jp/JVN38170084/ 源码审查 在开始任何 CVE 研究之前，一个非常好的方法是先阅读漏洞描述，然后检查补丁提交是否可用。 就我而言，补丁提交是可用的，很明显 HAProxy 的开发人员在 HTTP3 实...

CVE-2026-33555

HAProxy H3/QUIC 独立 FIN 请求体校验绕过导致的 HTTP 请求走私 完整文章请见：https://r3verii.github.io/cve/2026/04/14/haproxy-h3-standalone-fin-smuggling.html 摘要 HAProxy 的 HTTP/3 实现中存在一个漏洞，允许攻击者发送一个 Content-Length 头与实际请求体大小不匹配的 HTTP 请求。HAProxy 会将该畸形请求以声明的 Content-Length 但零请求体字节的形式，通过 HTTP/1.1 转发到后端。当后端发送早期响应（例如 301 重定向）并从...

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...

HTTP3-Adapter

HTTP/3-Adapter 一个通过 HTTP/3 发送请求的 Burp Suite 扩展。 Burp 原生不支持 HTTP/3。此扩展实现了一个 HTTP/3 协议栈，拦截所有请求，将其转换并通过 HTTP/3 发送，然后将响应转换回 Burp 能够理解的 HTTP 版本。 安装 可在 BAPP Store 中获取。 自行构建： ./gradlew jar - build/libs/HTTP3-Adapter-0.0.1.jar 通过 HTTP/3 发送请求 在 Explicit HTTP/3 only 模式下添加一个 X-Http3 请求头： GET /admin HTTP/1.1...

Linux Distros Unpatched Vulnerability : CVE-2026-100659

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty's HTTP/3 codec io.netty:netty-codec-http3 in versions 4.2.0.Final through 4.2.17.Final does not enforce the RFC 9114 requirement that the :authority...

Linux Distros Unpatched Vulnerability : CVE-2026-100663

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty's HTTP/3 codec io.netty:netty-codec-http3 from 4.2.2.Final through 4.2.17.Final does not special- case HTTP/1 CONNECT authority-form request-targets when...

Linux Distros Unpatched Vulnerability : CVE-2026-100660

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty's HTTP/3 codec io.netty:netty-codec-http3 from 4.2.0.Final through 4.2.17.Final retains unbounded per-stream QPACK encoder state. QpackEncoder stores a...

Linux Distros Unpatched Vulnerability : CVE-2026-100661

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty's HTTP/3 codec io.netty:netty-codec-http3 versions 4.2.0.Final through 4.2.17.Final contain a denial-of-service vulnerability in the QPACK prefixed-intege...

CVE-2026-4253-Scanner

CVE-2026-42530 — Safe-Check 扫描器 针对 NGINX HTTP/3（QUIC）释放后使用漏洞的非破坏性批量扫描器 在不触发漏洞的前提下，盘点你的哪些主机存在风险。 ⚠️ 免责声明 本工具仅用于授权的安全测试 ——测试你自己的基础设施，或你有明确书面授权进行评估的系统。它执行只读指纹识别 ，并不会 利用漏洞。你有责任确保测试在授权范围内，并遵守适用法律及负责任的披露原则。作者不对滥用行为承担任何责任。 🔍 关于漏洞 CVE-2026-42530 是 NGINX 的 ngxhttpv3module 中存在的释放后使用漏洞（CWE-416）。当 NGINX 配置为提供...

BIT-ENVOY-2026-48521 Envoy: HTTP/3 connection pool selection null-derefs in ProdClusterManagerFactory::allocateConnPool when transport_socket_options is null

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ProdClusterManagerFactory::allocateConnPool dereferences transportsocketoptions while selecting an HTTP/3 connection pool without first checking whether the...

CVE-2026-42530

CVE-2026-42530 CVE-2026-42530 扫描器，针对 nginx 的 HTTP/3 模块中的释放后使用（use-after-free）漏洞。 受影响版本：nginx 1.31.0、1.31.1 已修复版本：nginx 1.31.2 使用方法 pip install aioquic python3 scannerCVE-2026-42530.py port python3 scannerCVE-2026-42530.py --file hosts.txt 工作原理 在同一连接上打开两个 QPACK 编码器流。已修复版本会以 0x103...

CVE-2026-42530

🛡️ CVE-2026-42530 - NGINX HTTP/3 QUIC 释放后使用漏洞 NGINX HTTP/3 QUIC 中的高危释放后使用漏洞 ⚠️ QPACK 编码器流漏洞 🔍 概述 CVE-2026-42530 是 NGINX 的 ngxhttpv3module 模块中的一个 释放后使用 漏洞。 远程未认证攻击者可以通过在 HTTP/3 上重新打开已关闭的 QPACK 编码器流 来触发此漏洞，导致工作进程崩溃（拒绝服务），并在某些配置下可能导致 远程代码执行 。 🚨 严重性 指标| 评级| 颜色 ---|---|--- CVSS v3.1| 8.1 高危| 🟠 CVSS...

PT-2026-102719

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ProdClusterManagerFactory::allocateConnPool dereferences transport socket options while selecting an HTTP/3 connection pool without first checking whether t...

CVE-2026-100659

A flaw was found in the Netty HTTP/3 codec. This vulnerability allows access control and request routing bypasses due to missing validation of destination headers. A remote, unauthenticated attacker can exploit this flaw by sending a Hypertext Transfer Protocol HTTP request containing conflicting...

CVE-2026-100664

A flaw was found in Netty's HTTP/3 codec. When converting HTTP/1 requests to HTTP/3, the codec improperly prioritizes the Host header over the request-target authority. A remote, unauthenticated attacker can exploit this authority confusion by sending a request containing conflicting destination...

CVE-2026-100663

A flaw was found in Netty's HTTP/3 codec netty-codec-http3. A remote attacker can bypass security policies and tunnel allowlists when Netty acts as an HTTP/1 to HTTP/3 proxy or gateway. Due to improper translation of HTTP/1 CONNECT requests, the component uses the attacker-controlled Host header ...

CVE-2026-100662

A flaw was found in Netty's HTTP/3 codec. A remote, unauthenticated attacker can cause a Denial of Service DoS by establishing an HTTP/3 connection and sending stream instructions that declare excessively large field lengths without delivering the complete data. Because the server does not enforc...

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 Insert With Literal Name handling in QpackEncoderHandler.java, which accepts a declared string-literal length of up to roughly 2 GiB for both the name line 141 and the value li...