MidnightBSD

Advisories for goshs

CVE-2026-35392

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.3, PUT upload in httpserver/updown.go has no path sanitization. This vulnerability is fixed in 2.0.0-beta.3.

Products Affected

Vendor Product Version
goshs goshs 2.0.0
goshs goshs *
CVE-2026-35393

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.3, the POST multipart upload directory not sanitized. This vulnerability is fixed in 2.0.0-beta.3.

Products Affected

Vendor Product Version
goshs goshs 2.0.0
goshs goshs *
CVE-2026-35471

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.3, tdeleteFile() missing return after path traversal check. This vulnerability is fixed in 2.0.0-beta.3.

Products Affected

Vendor Product Version
goshs goshs 2.0.0
goshs goshs *
CVE-2026-40876

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.6, goshs contains an SFTP root escape caused by prefix-based path validation. An authenticated SFTP user can read from and write to filesystem paths outside the configured SFTP root, which breaks the intended jail boundary and can expose or modify unrelated server files. The SFTP subsystem routes requests through sftpserver/sftpserver.go into DefaultHandler.GetHandler() in sftpserver/handler.go, which forwards file operations into readFile, writeFile, listFile, and cmdFile. All of those sinks rely on sanitizePath() in sftpserver/helper.go. helper.go uses a raw string-prefix comparison, not a directory-boundary check. Because of that, if the configured root is /tmp/goshsroot, then a sibling path such as /tmp/goshsroot_evil/secret.txt incorrectly passes validation since it starts with the same byte prefix. This vulnerability is fixed in 2.0.0-beta.6.

CVSS 3.x

Source Score Severity Vector Exploitability Impact
nvd@nist.gov 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 2.8 5.9

Products Affected

Vendor Product Version
goshs goshs 2.0.0
goshs goshs *
CVE-2026-40883

goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs contains a cross-site request forgery issue in its state-changing HTTP GET routes. An external attacker can cause an already authenticated browser to trigger destructive actions such as ?delete and ?mkdir because goshs relies on HTTP basic auth alone and performs no CSRF, Origin, or Referer validation for those routes. This vulnerability is fixed in 2.0.0-beta.6.

CVSS 3.x

Source Score Severity Vector Exploitability Impact
nvd@nist.gov 8.1 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H 2.8 5.2

Products Affected

Vendor Product Version
goshs goshs 2.0.0
CVE-2026-40884

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.

CVSS 3.x

Source Score Severity Vector Exploitability Impact
security-advisories@github.com 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 3.9 5.9

Products Affected

Vendor Product Version
goshs goshs 2.0.0
goshs goshs *
CVE-2026-40885

goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs leaks file-based ACL credentials through its public collaborator feed when the server is deployed without global basic auth. Requests to .goshs-protected folders are logged before authorization is enforced, and the collaborator websocket broadcasts raw request headers, including Authorization. An unauthenticated observer can capture a victim's folder-specific basic-auth header and replay it to read, upload, overwrite, and delete files inside the protected subtree. This vulnerability is fixed in 2.0.0-beta.6.

CVSS 3.x

Source Score Severity Vector Exploitability Impact
nvd@nist.gov 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 2.8 5.9

Products Affected

Vendor Product Version
goshs goshs 2.0.0