CVE-2026-50138

goshs: WebDAV listener ignores --read-only, --upload-only, and --no-delete mode flags

State: Published
Severity: 8.1 High
Published: Aug 18, 2026
Updated: Aug 19, 2026
Reserved: Jun 3, 2026

Description

goshs is a SimpleHTTPServer written in Go. Prior to version 2.1.0, when `goshs` is launched with WebDAV enabled (`-w`), the mode-restriction flags `--read-only`, `--upload-only`, and `--no-delete` are enforced only on the primary HTTP port. The WebDAV port is wired straight to `golang.org/x/net/webdav.Handler` with no equivalent guard, so an authenticated WebDAV client can `PUT`, `DELETE`, `MKCOL`, `MOVE`, and `COPY` despite the operator's stated intent. Version 2.1.0 patches the issue.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
goshspatrickhener	< 2.1.0Affected

References

https://github.com/goshs-labs/goshs/security/advisories/GHSA-3whc-qvhv-xqjp

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