Missing Write Protection for Parametric Data Values Affecting github.com/patrickhener/goshs/sftpserver package, versions >=1.0.7 <2.0.0-beta.4
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMPATRICKHENERGOSHSSFTPSERVER-16304804
- published27 Apr 2026
- disclosed10 Apr 2026
- creditmarduc812
Introduced: 10 Apr 2026
CVE-2026-40188 (opens in a new tab)How to fix?
Upgrade github.com/patrickhener/goshs/sftpserver to version 2.0.0-beta.4 or higher.
Overview
Affected versions of this package are vulnerable to Missing Write Protection for Parametric Data Values through improper sanitization of the destination path in the rename process. An attacker can overwrite files outside the intended root directory by supplying crafted destination paths.