goshs is Missing Write Protection for Parametric Data Values

[nixpkgs-security-tracker]

• CVE-2026-40188
• Nixpkgs security tracker issue
• affected package maintainers: cc @SEIAROTg, @matthiasbeyer, @fabaff

Description

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.

References

• GHSA-2943-crp8-38xx (x_refsource_CONFIRM)
• patrickhener/goshs@141c188 (x_refsource_MISC)
• https://github.com/patrickhener/goshs/releases/tag/v2.0.0-beta.4 (x_refsource_MISC)

7.7 HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

• CVSS version: 3.1
• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): Low (L)
• User Interaction (UI): None (N)
• Scope (S): Changed (C)
• Confidentiality (C): None (N)
• Integrity (I): High (H)
• Availability (A): None (N)

Affected packages

• goshs (1.1.2@nixos-25.11, 1.1.4@nixos-unstable)