CVE-2026-50138: high-severity vulnerability in patrickhener goshs
goshs: WebDAV listener ignores --read-only, --upload-only, and --no-delete mode flags
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected products
patrickhener · goshsRelated CVEs — patrickhener goshs
In the same product, most dangerous first.
CVE-2025-46816CRITICALgoshs route not protected, allows command executionEPSS 0.8%CVE-2026-40189CRITICALgoshs has a file-based ACL authorization bypass in goshs state-changing routesEPSS 0.7%CVE-2026-35471CRITICALImproper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in goshsEPSS 0.7%CVE-2026-35393CRITICALImproper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in goshs POST multipart uploadEPSS 0.7%CVE-2026-35392CRITICALgoshs has an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in goshs PUT UploadEPSS 0.7%CVE-2026-40884CRITICALgoshs: Empty-username SFTP password authentication bypass in goshsEPSS 0.5%