CVE-2026-40884

critical · 9.8

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.6, goshs contains an SFTP authentication bypass when the documented empty-username basic-auth syntax is used. If the server is started with -b ':pass' together with -sftp, goshs accepts that configuration but does not install any SFTP password handler. As a result, an unauthenticated network attacker can connect to the SFTP service and access files without a password. This vulnerability is fixed in 2.0.0-beta.6.

9.8

CVSS

0.5%

EPSS (exploit prob.)

40th

EPSS percentile

2026-04-21

Published

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

Weaknesses

CWE-306

Affected products

Vendor	Product	Affected versions
goshs	goshs	< 2.0.0
goshs	goshs	2.0.0
goshs	goshs	2.0.0
goshs	goshs	2.0.0
goshs	goshs	2.0.0
goshs	goshs	2.0.0

Check a specific version with /api/v1/cve/match.

References

https://github.com/patrickhener/goshs/security/advisories/GHSA-c29w-qq4m-2gcv
https://github.com/patrickhener/goshs/security/advisories/GHSA-c29w-qq4m-2gcv

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-40884