Severity:

CRITICAL RISK

(9.8)

Authentication Bypass (CWE-306) in goshs SFTP Service with Empty-Username Basic Auth

CVE-2026-40884

Published:

Apr 21, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Vulnerability Type

Vulnerability Type

Category:

Authentication Bypass

CWE:

CWE-306

Impact:

Unauthorized Access to Files over SFTP

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Authentication Bypass

CWE:

CWE-306

Impact:

Unauthorized Access to Files over SFTP

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.