Cloudanix VulnDB

CVE-2026-40189

Critical · 9.8

CVSS

9.8

EPSS

0.7%

Published

Apr 10, 2026

CISA due date

—

The record

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.4, goshs enforces the documented per-folder .goshs ACL/basic-auth mechanism for directory listings and file reads, but it does not enforce the same authorization checks for state-changing routes. An unauthenticated attacker can upload files with PUT, upload files with multipart POST /upload, create directories with ?mkdir, and delete files with ?delete inside a .goshs-protected directory. By deleting the .goshs file itself, the attacker can remove the folder's auth policy and then access previously protected content without credentials. This results in a critical authorization bypass affecting confidentiality, integrity, and availability. This vulnerability is fixed in 2.0.0-beta.4.

Affected packages

Ecosystem Package Introduced Fixed
openSUSE:Tumbleweed goshs 0 2.0.0-1.1

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