CVE-2026-35392
Received Received - Intake
Path Traversal in goshs PUT Upload Allows Arbitrary File Write

Publication date: 2026-04-06

Last updated on: 2026-04-09

Assigner: GitHub, Inc.

Description
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.
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Meta Information
Published
2026-04-06
Last Modified
2026-04-09
Generated
2026-06-16
AI Q&A
2026-04-07
EPSS Evaluated
2026-06-14
NVD
CVE-2026-35392
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
goshs goshs 2.0.0
goshs goshs to 2.0.0 (exc)
goshs goshs 2.0.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
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Executive Summary

The vulnerability exists in goshs, a SimpleHTTPServer written in Go. Before version 2.0.0-beta.3, the PUT upload functionality in the file httpserver/updown.go did not perform path sanitization. This means that the server could accept and process file upload paths without validating or cleaning them, potentially allowing malicious users to upload files to unintended locations.

Impact Analysis

Because the PUT upload feature lacks path sanitization, an attacker could exploit this to upload files to arbitrary locations on the server. This can lead to severe impacts including unauthorized modification or replacement of critical files, remote code execution, and full system compromise.

Mitigation Strategies

To mitigate this vulnerability, upgrade goshs to version 2.0.0-beta.3 or later, where the path sanitization issue in the PUT upload functionality has been fixed.

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