CVE-2026-66064: Goshs-Labs Goshs

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Goshs-Labs Goshs: before 2.1.5 (fixed in 2.1.5)

Published 2026-07-28. Last modified 2026-07-30.