CVE-2026-84380

A flaw was found in HTTPX2, a Python HTTP client. The Request.prepare function can incorrectly add a Content-Length header to a request that already includes a Transfer-Encoding header. This conflict in HTTP framing headers can lead to request smuggling or connection desynchronization. This could...

EUVD-2026-70248

HTTPX2 is a next generation HTTP client for Python. Prior to 2.11.0, Request.prepare in src/httpx2/httpx2/models.py can add a body-derived Content-Length header to a request that already contains a caller-supplied Transfer-Encoding header because its setdefault processing checks each default head...

CVE-2026-47206 Dragonfly: RESP Protocol Injection via Lua redis.error_reply() in EvalSerializer

Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.39.9, Dragonfly has a RESP Protocol Injection via Lua redis.errorreply in EvalSerializer. An authenticated user can inject arbitrary RESP messages into the connection's response stream, potentially causing...

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in tornado

Summary When Tornado receives a request with two Transfer-Encoding: chunked headers, it ignores them both. This enables request smuggling when Tornado is deployed behind a proxy server that emits such requests. Pound does this. PoC 0. Install Tornado. 1. Start a simple Tornado server that echoes...