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Tinyweb EUVDEUVD-2026-49900

| CVE-2026-67183 HIGH
Memory Leak (CWE-401)
2026-07-28 VulnCheck GHSA-9hxr-3mx5-3v44
8.7
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
8.7 HIGH
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Jul 28, 2026 - 17:15 vuln.today
CVE Published
Jul 28, 2026 - 16:26 cve.org
HIGH 8.7

DescriptionCVE.org

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.

AnalysisAI

Memory exhaustion vulnerability in TinyWeb HTTP server (through 0.0.8) enables unauthenticated remote attackers to cause denial of service by sending ordinary HTTP requests. A memory leak in the request parser allocates objects without freeing them, consuming approximately 20–28 kB per request until the worker process is killed. …

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CVE-2026-67185 HIGH POC
8.7 Jul 28

Path traversal in TinyWeb through 0.0.8 allows unauthenticated remote attackers to read arbitrary files from the server'

CVE-2026-67184 HIGH POC
8.7 Jul 28

Null pointer dereference in TinyWeb 0.0.8 and earlier allows unauthenticated remote attackers to crash worker processes

CVE-2024-34199 HIGH POC
8.6 May 14

TinyWeb 1.94 and below allows unauthenticated remote attackers to cause a denial of service (Buffer Overflow) when sendi

CVE-2026-22781 CRITICAL
9.8 Jan 12

TinyWeb HTTP Server before 1.98 has OS command injection via CGI ISINDEX query parameters. The query string is passed as

CVE-2026-27613 CRITICAL
9.8 Feb 25

Unauthenticated command injection in TinyWeb HTTP/HTTPS server for Win32 before 2.01 allows remote attackers to execute

CVE-2024-5193 MEDIUM POC
5.5 May 22

A security vulnerability has been detected in Ritlabs TinyWeb Server 1.94. Rated medium severity (CVSS 5.5), this vulner

CVE-2026-28497 CRITICAL
9.1 Mar 06

Integer overflow in TinyWeb before 2.03.

CVE-2026-29046 HIGH
8.2 Mar 06

TinyWeb versions prior to 2.04 fail to properly sanitize control characters and encoded sequences (CR, LF, NUL) in HTTP

CVE-2026-27633 HIGH
7.5 Feb 26

TinyWeb versions prior to 2.02 are vulnerable to denial of service through memory exhaustion when unauthenticated attack

CVE-2026-27630 HIGH
7.5 Feb 26

TinyWeb versions prior to 2.02 lack connection limits and request timeouts, enabling unauthenticated remote attackers to

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EUVD-2026-49900 vulnerability details – vuln.today

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