EUVD-2026-49904
GHSA-qh4x-9gfh-82jc
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK
2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Jul 28, 2026
Path traversal in TinyWeb through 0.0.8 allows unauthenticated remote attackers to read arbitrary files from the server's filesystem by injecting ../ sequences into the URL path, which are concatenated without normalization in HttpBuilder::buildResponse(). Publicly available exploit code exists, yet no active exploitation is recorded in CISA KEV; the risk is elevated when the server runs as root, exposing credential stores and private keys.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
DescriptionCVE.org
TinyWeb through 0.0.8 contains a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files by submitting ../ sequences in the URL path, which are concatenated directly to the configured web root in HttpBuilder::buildResponse() without normalization, dot-segment removal, or boundary checks. Attackers can craft a single request with ../ sequences that pass through the URL parser unchanged and reach the filesystem call via HttpFile::setFile(), exposing sensitive files such as credential stores and private keys when the server process runs as root.
Latest POC
1 PoC candidate from github (unverified)
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Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.
Null pointer dereference in TinyWeb 0.0.8 and earlier allows unauthenticated remote attackers to crash worker processes
Memory exhaustion vulnerability in TinyWeb HTTP server (through 0.0.8) enables unauthenticated remote attackers to cause
TinyWeb 1.94 and below allows unauthenticated remote attackers to cause a denial of service (Buffer Overflow) when sendi
TinyWeb HTTP Server before 1.98 has OS command injection via CGI ISINDEX query parameters. The query string is passed as
Unauthenticated command injection in TinyWeb HTTP/HTTPS server for Win32 before 2.01 allows remote attackers to execute
A security vulnerability has been detected in Ritlabs TinyWeb Server 1.94. Rated medium severity (CVSS 5.5), this vulner
Integer overflow in TinyWeb before 2.03.
TinyWeb versions prior to 2.04 fail to properly sanitize control characters and encoded sequences (CR, LF, NUL) in HTTP
TinyWeb versions prior to 2.02 are vulnerable to denial of service through memory exhaustion when unauthenticated attack
TinyWeb versions prior to 2.02 lack connection limits and request timeouts, enabling unauthenticated remote attackers to
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