CVE-2026-67185

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/theopaid/Unauthenticated-Path-Traversal-Allows-Arbitrary-File-Read-TinyWeb-
https://www.vulncheck.com/advisories/tinyweb-path-traversal-via-url-path-component

Configurations

No configuration.

History

23 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) TinyWeb hasta la versión 0.0.8 contiene una vulnerabilidad de salto de ruta que permite a atacantes no autenticados leer archivos arbitrarios al enviar secuencias .. / en la ruta URL, las cuales se concatenan directamente a la raíz web configurada en HttpBuilder::buildResponse() sin normalización, eliminación de segmentos de puntos o comprobaciones de límites. Los atacantes pueden elaborar una única solicitud con secuencias .. / que pasan a través del analizador de URL sin cambios y alcanzan la llamada al sistema de archivos a través de HttpFile::setFile(), exponiendo archivos sensibles como almacenes de credenciales y claves privadas cuando el proceso del servidor se ejecuta como root.

Information

Published : 2026-07-28 17:17

Updated : 2026-10-23 23:10

NVD link : CVE-2026-67185

Mitre link : CVE-2026-67185

CVE.ORG link : CVE-2026-67185

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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