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

Quick assessment

Affected
GeneralSandman TinyWeb
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GeneralSandman TinyWeb是GeneralSandman个人开发者开源的一款嵌入式Web服务器软件。 GeneralSandman TinyWeb 0.0.8及之前版本存在资源管理错误漏洞，该漏洞源于HttpParser::execute()中分配Url、HttpHeaders、HttpHeader对象时缺少析构函数和不可达的delete调用导致内存泄漏，可能造成未经身份验证的攻击者通过发送普通HTTP请求耗尽可用内存。

CVSS 7.5 · High EPSS 0.51% · P41

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
GeneralSandman TinyWeb e48f15d38d2bebeec9cabcfdde81931b10a1963b≤ a381da252fe8e873c8aff22703040426cc9b2ae0 affected
0.0.8 affected
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I. Basic Information for CVE-2026-67183

Vulnerability Information
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Vulnerability Title
TinyWeb 0.0.8 Memory Leak DoS via HTTP Request Handling
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
GeneralSandman TinyWeb 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GeneralSandman TinyWeb是GeneralSandman个人开发者开源的一款嵌入式Web服务器软件。 GeneralSandman TinyWeb 0.0.8及之前版本存在资源管理错误漏洞，该漏洞源于HttpParser::execute()中分配Url、HttpHeaders、HttpHeader对象时缺少析构函数和不可达的delete调用导致内存泄漏，可能造成未经身份验证的攻击者通过发送普通HTTP请求耗尽可用内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GeneralSandman TinyWeb e48f15d38d2bebeec9cabcfdde81931b10a1963b ~ a381da252fe8e873c8aff22703040426cc9b2ae0 -

II. Public POCs for CVE-2026-67183

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7267 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-67183

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Vendor Advisories for CVE-2026-67183 (1)

Proof of Concept for CVE-2026-67183 (1)

Same Patch Batch · GeneralSandman · 2026-07-28 · 3 CVEs total

CVE-2026-67185 7.5 HIGH TinyWeb 0.0.8 Path Traversal via URL Path Component
CVE-2026-67184 7.5 HIGH TinyWeb 0.0.8 Null Pointer Dereference DoS via Malformed HTTP Request

IV. Related Vulnerabilities

Same product: TinyWeb
Same vendor: GeneralSandman
Same weakness: CWE-401

V. Comments for CVE-2026-67183

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