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Vulnerable Software

Vulnerability Details CVE-2026-40189

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 28.5%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-40189
  • Goshs » Goshs » Version: 0.0.1
    cpe:2.3:a:goshs:goshs:0.0.1
  • Goshs » Goshs » Version: 0.0.2
    cpe:2.3:a:goshs:goshs:0.0.2
  • Goshs » Goshs » Version: 0.0.3
    cpe:2.3:a:goshs:goshs:0.0.3
  • Goshs » Goshs » Version: 0.0.4
    cpe:2.3:a:goshs:goshs:0.0.4
  • Goshs » Goshs » Version: 0.0.5
    cpe:2.3:a:goshs:goshs:0.0.5
  • Goshs » Goshs » Version: 0.0.6
    cpe:2.3:a:goshs:goshs:0.0.6
  • Goshs » Goshs » Version: 0.0.8
    cpe:2.3:a:goshs:goshs:0.0.8
  • Goshs » Goshs » Version: 0.0.9
    cpe:2.3:a:goshs:goshs:0.0.9
  • Goshs » Goshs » Version: 0.1.0
    cpe:2.3:a:goshs:goshs:0.1.0
  • Goshs » Goshs » Version: 0.1.1
    cpe:2.3:a:goshs:goshs:0.1.1
  • Goshs » Goshs » Version: 0.1.2
    cpe:2.3:a:goshs:goshs:0.1.2
  • Goshs » Goshs » Version: 0.1.3
    cpe:2.3:a:goshs:goshs:0.1.3
  • Goshs » Goshs » Version: 0.1.4
    cpe:2.3:a:goshs:goshs:0.1.4
  • Goshs » Goshs » Version: 0.1.5
    cpe:2.3:a:goshs:goshs:0.1.5
  • Goshs » Goshs » Version: 0.1.6
    cpe:2.3:a:goshs:goshs:0.1.6
  • Goshs » Goshs » Version: 0.1.7
    cpe:2.3:a:goshs:goshs:0.1.7
  • Goshs » Goshs » Version: 0.1.8
    cpe:2.3:a:goshs:goshs:0.1.8
  • Goshs » Goshs » Version: 0.1.9
    cpe:2.3:a:goshs:goshs:0.1.9
  • Goshs » Goshs » Version: 0.2.0
    cpe:2.3:a:goshs:goshs:0.2.0
  • Goshs » Goshs » Version: 0.3.0
    cpe:2.3:a:goshs:goshs:0.3.0
  • Goshs » Goshs » Version: 0.3.1
    cpe:2.3:a:goshs:goshs:0.3.1
  • Goshs » Goshs » Version: 0.3.2
    cpe:2.3:a:goshs:goshs:0.3.2
  • Goshs » Goshs » Version: 0.3.3
    cpe:2.3:a:goshs:goshs:0.3.3
  • Goshs » Goshs » Version: 0.3.4
    cpe:2.3:a:goshs:goshs:0.3.4
  • Goshs » Goshs » Version: 0.3.5
    cpe:2.3:a:goshs:goshs:0.3.5
  • Goshs » Goshs » Version: 0.3.6
    cpe:2.3:a:goshs:goshs:0.3.6
  • Goshs » Goshs » Version: 0.3.7
    cpe:2.3:a:goshs:goshs:0.3.7
  • Goshs » Goshs » Version: 0.3.8
    cpe:2.3:a:goshs:goshs:0.3.8
  • Goshs » Goshs » Version: 0.3.9
    cpe:2.3:a:goshs:goshs:0.3.9
  • Goshs » Goshs » Version: 0.4.0
    cpe:2.3:a:goshs:goshs:0.4.0
  • Goshs » Goshs » Version: 0.4.1
    cpe:2.3:a:goshs:goshs:0.4.1
  • Goshs » Goshs » Version: 0.4.2
    cpe:2.3:a:goshs:goshs:0.4.2
  • Goshs » Goshs » Version: 1.0.0
    cpe:2.3:a:goshs:goshs:1.0.0
  • Goshs » Goshs » Version: 1.0.1
    cpe:2.3:a:goshs:goshs:1.0.1
  • Goshs » Goshs » Version: 1.0.2
    cpe:2.3:a:goshs:goshs:1.0.2
  • Goshs » Goshs » Version: 1.0.3
    cpe:2.3:a:goshs:goshs:1.0.3
  • Goshs » Goshs » Version: 1.0.4
    cpe:2.3:a:goshs:goshs:1.0.4
  • Goshs » Goshs » Version: 1.0.5
    cpe:2.3:a:goshs:goshs:1.0.5
  • Goshs » Goshs » Version: 1.0.6
    cpe:2.3:a:goshs:goshs:1.0.6
  • Goshs » Goshs » Version: 1.0.7
    cpe:2.3:a:goshs:goshs:1.0.7
  • Goshs » Goshs » Version: 1.0.8
    cpe:2.3:a:goshs:goshs:1.0.8
  • Goshs » Goshs » Version: 1.0.9
    cpe:2.3:a:goshs:goshs:1.0.9
  • Goshs » Goshs » Version: 1.1.0
    cpe:2.3:a:goshs:goshs:1.1.0
  • Goshs » Goshs » Version: 1.1.1
    cpe:2.3:a:goshs:goshs:1.1.1
  • Goshs » Goshs » Version: 1.1.2
    cpe:2.3:a:goshs:goshs:1.1.2
  • Goshs » Goshs » Version: 1.1.3
    cpe:2.3:a:goshs:goshs:1.1.3
  • Goshs » Goshs » Version: 1.1.4
    cpe:2.3:a:goshs:goshs:1.1.4
  • Goshs » Goshs » Version: 2.0.0
    cpe:2.3:a:goshs:goshs:2.0.0


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