fix_nginx_cve_2026_42945

NGINX CVE-2026-42945 一键修复脚本 自动检测系统发行版，升级 NGINX 至修复版本 ≥1.30.1，并备份配置、自动回滚。 漏洞说明 漏洞编号： CVE-2026-42945 漏洞名称：NGINX Rift NGINX 在处理特定的 rewrite 跳转规则时，请求内容长度计算与实际写入不一致，攻击者可构造恶意请求触发内存破坏，导致工作进程崩溃，甚至远程代码执行。 受影响版本： 低于 NGINX 1.30.1 / 1.31.0 的所有版本 修复版本： NGINX 1.30.1 / 1.31.0 及以上 特性 自动发行版检测 — Ubuntu/Debian /...

NGINX-ngx_http_rewrite_module-heap-buffer-overflow-CVE-2026-9256

CVE-2026-9256 NGINX ngxhttprewritemodule PoC 推导过程与思考 适用范围：仅用于本地靶场、授权复现环境、漏洞验证和防护规则分析。不要对未授权目标使用。本文中的 PoC 思路只验证远程可见的 NGINX worker crash 行为，不包含 RCE、ASLR 绕过或稳定利用链。 1. 漏洞背景 CVE-2026-9256 是 NGINX ngxhttprewritemodule 中的堆缓冲区溢出漏洞。漏洞触发并不是单纯访问某个固定 URI，而是依赖特定的 rewrite 配置模式：rewrite 正则中存在互相重叠的 PCRE 捕获组，并且...

CVE-2026-23918-Apache-H2-PoC

CVE-2026-23918-Apache-H2-PoC Este es un exploit de prueba de concepto para la vulnerabilidad de doble liberación en modhttp2 de Apache CVE-2026-23918. Es un bug desagradable que afecta a la ruta de limpieza de streams en h2mplx.c. Básicamente, si sincronizas bien el momento, puedes lograr que el...

CVE-2026-42945

CVE-2026-42945 PoC（Go） 中文 | English 针对 nginx HTTP/2 实现（CVE-2026-42945） 的探测与利用辅助工具，用于在授权环境 中验证漏洞是否存在、对照修复效果，并在可控实验环境中复现 PoC 行为。 受影响版本（粗判）：nginx 0.6.27 – 1.30.0 ；1.30.1+ / 1.31.0+ 已修复。 ⚠️ 免责声明（请务必阅读） 本仓库仅供安全研究、漏洞验证与防御性测试使用。 1. 合法授权 ：你只能在拥有明确书面授权 或完全归你所有...

CVE-2026-78222

A vulnerability exists in NGINX JavaScript where a malformed HTTP response received by ngx.fetch can crash an NGINX worker when trusted JavaScript reads Response.statusText. Exploitation requires control or influence over the fetched HTTP response. Impact: This vulnerability may allow remote...

CVE-2026-78222

NGINX JavaScript (ngx_http_js_module) is vulnerable to a NULL Pointer Dereference (CWE-476) when a malformed HTTP response received by ngx.fetch() is processed and trusted JavaScript reads Response.statusText, causing an NGINX worker crash . Exploitation requires control or influence over the fet...

CVE-2026-78222 NGINX ngx_http_js_module vulnerability

A vulnerability exists in NGINX JavaScript where a malformed HTTP response received by ngx.fetch can crash an NGINX worker when trusted JavaScript reads Response.statusText. Exploitation requires control or influence over the fetched HTTP response. Impact: This vulnerability may allow remote...

CVE-2021-23017-POC

CVE-2021-23017-POC 在 nginx 解析器中识别出一个安全问题，可能允许能够伪造来自 DNS 服务器的 UDP 数据包的攻击者造成 1 字节内存覆盖，导致工作进程崩溃或其他潜在影响。 该问题仅影响在配置文件中使用了 "resolver" 指令的 nginx。此外，只有在攻击者能够伪造来自 DNS 服务器的 UDP 数据包时，攻击才能得逞。...

CVE-2021-26690---Apache-mod_session

对 CVE-2021-26690 的补丁差异分析 - Apache modsession 此漏洞是 Apache 的 modsession 模块中的空指针解引用。 它将导致 Apache httpd 的子进程拒绝服务。 通过使用重复循环，每个 Apache worker 都会崩溃，从而导致所有连接或已连接到该网站的客户端拒绝服务。 该漏洞最初由 @antonio-morales 发现。 有关完整过程，请参阅本仓库中的 PDF。 限制 如果服务器通过 modsessioncrypto 实现了 SessionCryptoPassphrase 选项，则 cookie 将被加密并进行 base6...

Astra Linux – Vulnerability in Samba

A Type Confusion vulnerability was discovered in Samba’s mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data structure is a key-value style dictionary, where the keys are character strings, and the values can be any of the supported types in the mdssvc...

haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions

A flaw was found in HAProxy. An attacker can trigger HPACK dynamic table insertions under memory pressure, leading to a null pointer dereference in the hpackdhtinsert function. This can cause HAProxy worker processes to crash, resulting in a denial of service DoS...

FreeBSD : Angie -- multiple vulnerabilities (347fe124-8f53-11f1-9f4f-3c7c3fba4204)

"The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 347fe124-8f53-11f1-9f4f-3c7c3fba4204 advisory. The Angie Software Team reports: When evaluating a string expression in which unnamed capture...

CVE-2026-67184

TinyWeb through 0.0.8 contains a null pointer dereference vulnerability that allows unauthenticated remote attackers to crash worker processes by sending a malformed HTTP request line with an invalid version string. The HttpParser::execute function fails to allocate the Url object when version...

CVE-2026-67184 TinyWeb 0.0.8 Null Pointer Dereference DoS via Malformed HTTP Request

TinyWeb through 0.0.8 contains a null pointer dereference vulnerability that allows unauthenticated remote attackers to crash worker processes by sending a malformed HTTP request line with an invalid version string. The HttpParser::execute function fails to allocate the Url object when version...

PYSEC-2026-3542 vLLM has Remote DoS via Invalid Recovered Token Reinjection

Summary A frontend-legal multi-request speculative workload can make vLLM produce an out-of-vocabulary recovered token equal to vocabsize, convert that value to -1 when choosing the next live token for a request, and then feed that -1 back into the next drafter input ids. On Qwen3 GPTQ this reach...

Uncaught Exception

Overview vllm is an A high-throughput and memory-efficient inference and serving engine for LLMs Affected versions of this package are vulnerable to Uncaught Exception through the rejection sampler process. An attacker can cause the engine worker to crash and abort concurrent requests by sending...

vLLM: temperature=NaN and temperature=Infinity bypass validation and propagate to GPU kernels

Summary All temperature validation gates use comparison operators , which silently evaluate to False for NaN and for positive Infinity in Python's IEEE 754 float semantics. Both values pass every guard and propagate to GPU sampling kernels, where they produce undefined behavior or CUDA errors tha...

CVE-2026-42544

Granian is a Rust HTTP server for Python applications. From 1.2.0 to 2.7.4, Granian aborts a worker process when an unauthenticated client sends a WebSocket upgrade request whose Sec-WebSocket-Protocol header contains non-ASCII bytes. The crash happens in Granian's WebSocket scope construction...

CLSA-2026-1778843906 nginx: Fix of CVE-2026-42945

CVE-2026-42945: fix heap buffer overflow in ngxhttprewritemodule when an unnamed PCRE capture group with '?' in the replacement is followed by another rewrite, if, or set directive; clear stale isargs flag in regex end code to prevent buffer overrun and possible worker crash or code execution...

CVE-2026-42945

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttprewritemodule module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression PCRE capture for example, $1, $2 with a replacement strin...