WebDAV Vulnerability in goshs File Server Affects Developers
CVE-2026-64863

9.1CRITICAL

Key Information:

Vendor

Goshs-labs

Status
Goshs
Vendor
CVE Published:
28 July 2026

What is CVE-2026-64863?

The goshs file server, a single-binary server for red teamers and developers, has an improper access control vulnerability related to its WebDAV implementation. Before version 2.1.4, the server's httpserver/server.go wdGuard improperly handled the WebDAV MOVE method as a write-only operation, failing to enforce the --no-delete restriction. This flaw enables WebDAV clients to inadvertently delete or overwrite files by sending a MOVE request with Overwrite: T. This security issue was rectified in version 2.1.4, emphasizing the importance of updating to safeguard against unauthorized file manipulation.

Affected Version(s)

goshs < 2.1.4

References

https://github.com/goshs-labs/goshs/security/advisories/G...
x_refsource_CONFIRM
https://github.com/goshs-labs/goshs/commit/0444ac6b1a8176...
x_refsource_MISC
https://github.com/goshs-labs/goshs/releases/tag/v2.1.4
x_refsource_MISC

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.