CVE-2026-66063

goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/updown.go multipart upload handler split part.FileName() on / but did not reject .., allowing an unauthenticated upload with filename .. to create a file outside the served tree. This issue is fixed in version 2.1.5.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/goshs-labs/goshs/commit/f3ef599e409151d1380866e47de8b1afb0bb54fa
https://github.com/goshs-labs/goshs/security/advisories/GHSA-wg2q-39h6-66x9

Configurations

No configuration.

History

23 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) goshs es un servidor de archivos binario único con muchas funciones para equipos rojos y desarrolladores. Antes de la versión 2.1.5, el gestor de carga multipart de httpserver/updown.go dividía part.FileName() por / pero no rechazaba .., permitiendo que una carga no autenticada con el nombre de archivo .. creara un archivo fuera del árbol servido. Este problema se ha corregido en la versión 2.1.5.

Information

Published : 2026-07-28 23:17

Updated : 2026-10-23 23:10

NVD link : CVE-2026-66063

Mitre link : CVE-2026-66063

CVE.ORG link : CVE-2026-66063

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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