CVE-2026-66064 MEDIUM

CVE-2026-66064: goshs has ACL Bypass & Path Traversal

Vendor Goshs-Labs
Product goshs
Weakness CWE-41
Published July 28, 2026
Last update July 29, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/handler.go sendFile handler opened files using a cleaned path but derived the authorization filename from raw req.URL.Path, so a trailing slash could bypass .goshs ACL-file protection and block-list checks. This issue is fixed in version 2.1.5.

Key dates

02Disclosure timeline

July 28, 2026 CVE published
July 29, 2026 Record updated