CVE-2026-40188: Goshs

High severity, CVSS 7.7. EPSS: 0.4% chance of exploitation in the next 30 days.

goshs is a SimpleHTTPServer written in Go. From 1.0.7 to before 2.0.0-beta.4, the SFTP command rename sanitizes only the source path and not the destination, so it is possible to write outside of the root directory of the SFTP. This vulnerability is fixed in 2.0.0-beta.4.

Affected products

• Goshs Goshs: from 1.0.7, before 2.0.0 (fixed in 2.0.0); version 2.0.0 only

Published 2026-04-10. Last modified 2026-06-17.