VULNERABILITY INTELLIGENCE

CVE-2026-66063

CVSS score6.5 MEDIUM
EPSS probability0.34%
CISA KEVNot currently listed
Published2026-07-28
Last modified2026-10-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Description

goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/updown.go multipart upload handler split part.FileName() on / but did not reject .., allowing an unauthenticated upload with filename .. to create a file outside the served tree. This issue is fixed in version 2.1.5.

Weakness classification

  • security-advisories@github.com: CWE-22

Primary references