PT-2026-65543 · Generalsandman · Tinyweb

Theodosis Paidakis · CVE-2026-67183 · Published 2026-07-28 · Updated 2026-07-28

NVD

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Exploit

Fix

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2026-67183

Affected Products

Tinyweb

References · 3

• 🔥 https://github.com/theopaid/Unauthenticated-Memory-Leak-Leads-To-Memory-Exhaustion-TinyWeb- · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-67183 · Security Note
• https://vulncheck.com/advisories/tinyweb-memory-leak-dos-via-http-request-handling · Note