CVE-2026-67183
HIGHTinyWeb 0.0.8 Memory Leak DoS via HTTP Request Handling
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-67183. PoCs published by theopaid.
AI-analyzed exploit summary Detailed technical analysis of CVE-2026-67183, a memory leak vulnerability in TinyWeb (v0.0.8) caused by missing destructors for `HttpRequest` and `HttpHeaders` structures, leading to unauthenticated memory exhaustion DoS. The writeup includes root cause analysis, code snippets, and a functional PoC demonstrating memory growth.
Description
TinyWeb through 0.0.8 contains a memory leak vulnerability that allows unauthenticated attackers to exhaust available memory by sending ordinary well-formed HTTP requests. Each request causes HttpParser::execute() to allocate Url objects, HttpHeaders objects, and HttpHeader instances via raw new expressions that are never freed due to missing destructors and unreachable delete calls, causing worker resident memory to grow monotonically by approximately 20 to 28 kB per request until the worker process is killed.
Exploits (1)
Detailed technical analysis of CVE-2026-67183, a memory leak vulnerability in TinyWeb (v0.0.8) caused by missing destructors for `HttpRequest` and `HttpHeaders` structures, leading to unauthenticated memory exhaustion DoS. The writeup includes root cause analysis, code snippets, and a functional PoC demonstrating memory growth.
References (2)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H