CVE-2026-67183 HIGH

CVE-2026-67183: TinyWeb 0.0.8 Memory Leak DoS via HTTP Request Handling

Vendor Generalsandman
Product TinyWeb
Weakness CWE-401
Published July 28, 2026
Last update July 28, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 28, 2026 CVE published
July 28, 2026 Record updated