dsh2shell

dsh2shell Unauthenticated RCE PoC for expo...

CVE-2026-77776

Headroom LLM proxy (v0.29.0 and earlier) trusts the client-supplied x-headroom-user-id header as an authenticated identity without binding it to the caller. The header is read directly in headroom/proxy/handlers/openai.py across chat completion and websocket paths, allowing any client to imperson...

EUVD-2026-63905

Headroom's LLM proxy derives the memory owner from the x-headroom-user-id request header. The header is read directly at several points in headroom/proxy/handlers/openai.py, including the chat completion and websocket paths, and nothing binds the value to the caller. A client can therefore name...

CVE-2026-71485 Centrifugo: Client-forgeable headers emulation lets any client spoof headers forwarded to proxy backends

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.9.0, Centrifugo copies the client-controlled protocol.ConnectRequest.headers map through OnClientConnecting in internal/client/handler.go, ConnectEvent.Headers, and SetEmulatedHeadersToContext. The requestHeaders path in...

EUVD-2026-63649

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.9.0, Centrifugo copies the client-controlled protocol.ConnectRequest.headers map through OnClientConnecting in internal/client/handler.go, ConnectEvent.Headers, and SetEmulatedHeadersToContext. The requestHeaders path in...

CVE-2026-63379 Libevent: HTTP Header smuggling

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent processes chunked HTTP trailers in http.c through evhttpreadtrailer and merges them into request headers. The fix introduces evhttpparseheadersimpl and a temporary trailer header list. An unauthenticated remote...

CVE-2026-63379

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent processes chunked HTTP trailers in http.c through evhttpreadtrailer and merges them into request headers. The fix introduces evhttpparseheadersimpl and a temporary trailer header list. An unauthenticated remote...

EUVD-2026-63562

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent processes chunked HTTP trailers in http.c through evhttpreadtrailer and merges them into request headers. The fix introduces evhttpparseheadersimpl and a temporary trailer header list. An unauthenticated remote...

CVE-2026-69183 Monkeytype: Rate-limit and anti-brute-force controls bypassable via spoofed HTTP headers (forgotPasswordEmail/verificationEmail mail bombing and badAuth bypass)

Monkeytype is a minimalistic and customizable typing test. In 26.26.0 and earlier, the backend rate-limit key generator in backend/src/middlewares/rate-limit.ts uses client-controlled cf-connecting-ip and x-forwarded-for headers before the trust-proxy-derived req.ip value. An unauthenticated...

CVE-2026-69183 Monkeytype: Rate-limit and anti-brute-force controls bypassable via spoofed HTTP headers (forgotPasswordEmail/verificationEmail mail bombing and badAuth bypass)

Monkeytype is a minimalistic and customizable typing test. In 26.26.0 and earlier, the backend rate-limit key generator in backend/src/middlewares/rate-limit.ts uses client-controlled cf-connecting-ip and x-forwarded-for headers before the trust-proxy-derived req.ip value. An unauthenticated...

EUVD-2026-63423

Monkeytype is a minimalistic and customizable typing test. In 26.26.0 and earlier, the backend rate-limit key generator in backend/src/middlewares/rate-limit.ts uses client-controlled cf-connecting-ip and x-forwarded-for headers before the trust-proxy-derived req.ip value. An unauthenticated...

PT-2026-79066

Monkeytype is a minimalistic and customizable typing test. In 26.26.0 and earlier, the backend rate-limit key generator in backend/src/middlewares/rate-limit.ts uses client-controlled cf-connecting-ip and x-forwarded-for headers before the trust-proxy-derived req.ip value. An unauthenticated...

PT-2026-79145

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.9.0, Centrifugo copies the client-controlled protocol.ConnectRequest.headers map through OnClientConnecting in internal/client/handler.go, ConnectEvent.Headers, and SetEmulatedHeadersToContext. The requestHeaders path in...

CVE-2026-16732 fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function...

EUVD-2026-57635

blaze is a Scala library for building asynchronous pipelines, with a focus on network IO. Prior to 0.23.18 and 1.0.0-M42, blaze-server can merge HTTP/1.1 chunked-body trailer fields into Request.headers. Because trailer fields are attacker-controlled, an unauthenticated remote client can inject...

CVE-2026-71467 Acm-search-v2-api-rhel9: search-v2-api: authentication bypass on /federated via upgrade: websocket header spoofing

A flaw was found in search-v2-api. The authentication middleware in the affected component unconditionally skips authentication when a request includes an Upgrade: websocket header. An unauthenticated attacker can exploit this by sending a specially crafted HTTP POST request to the /federated...

CVE-2026-72744

Nuxt versions = 4.4.7 and = 3.21.7 and 3.21.10, contain an information disclosure vulnerability in the development server's Chrome DevTools workspace endpoint GET /.well-known/appspecific/com.chrome.devtools.json. The endpoint's local-request gate isLocalDevRequest is header-based and trusts the...

CVE-2026-72744 Nuxt before 4.5.1 Information Disclosure via Chrome DevTools

Nuxt versions = 4.4.7 and = 3.21.7 and 3.21.10, contain an information disclosure vulnerability in the development server's Chrome DevTools workspace endpoint GET /.well-known/appspecific/com.chrome.devtools.json. The endpoint's local-request gate isLocalDevRequest is header-based and trusts the...

CVE-2026-72744

Nuxt versions = 4.4.7 and = 3.21.7 and 3.21.10, contain an information disclosure vulnerability in the development server's Chrome DevTools workspace endpoint GET /.well-known/appspecific/com.chrome.devtools.json. The endpoint's local-request gate isLocalDevRequest is header-based and trusts the...

CVE-2026-72744

Nuxt.js development server vulnerability (CVE-2026-72744) affects Nuxt versions 4.4.7–4.5.0 and 3.21.7–3.21.9. The Chrome DevTools workspace endpoint (GET /.well-known/appspecific/com.chrome.devtools.json) trusts the Host header to determine local requests, allowing unauthenticated LAN attackers ...