---
title: "CVE-2026-64863: goshs --no-delete WebDAV MOVE bypass allows file deletion/overwrite"
url: https://erroneo.us/security/cve/CVE-2026-64863/
description: "CVE-2026-64863 (goshs.de/goshs/v2 (Go)): goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.4, the…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-07-28
date_modified: 2026-07-29
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-64863"
kev: false
cvss: 9.1
epss: 0.00629
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-64863: goshs --no-delete WebDAV MOVE bypass allows file deletion/overwrite

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.6% , percentile 49: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 49% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes goshs.de/goshs/v2 (Go) <= 2.1.3, fixed in 2.1.4 ; github.com/patrickhener/goshs/v2 (Go) <= 2.1.3, fixed in 2.1.4 ; goshs.de/goshs (Go) <= 1.1.4, no fixed version listed ; github.com/patrickhener/goshs (Go) <= 1.1.4, no fixed version listed . Check your lockfile, including transitive dependencies.

## What it is

goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.4, the httpserver/server.go wdGuard handled WebDAV MOVE as a write-only method and did not enforce --no-delete, allowing WebDAV clients to delete or overwrite files via MOVE with Overwrite: T. This issue is fixed in version 2.1.4.

## Affected packages

- Go `goshs.de/goshs/v2` <= 2.1.3 → fixed: 2.1.4
- Go `github.com/patrickhener/goshs/v2` <= 2.1.3 → fixed: 2.1.4
- Go `goshs.de/goshs` <= 1.1.4 → fixed: none listed
- Go `github.com/patrickhener/goshs` <= 1.1.4 → fixed: none listed

## Affected products (CVE record)

- goshs-labs goshs: < 2.1.4

## Severity

- GitHub_M CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.63% probability of exploitation activity in the next 30 days; percentile 49.

## Sources

- [GitHub Advisory GHSA-hq33-8jgp-8qq3](https://github.com/advisories/GHSA-hq33-8jgp-8qq3)
- [CVE.org record CVE-2026-64863](https://www.cve.org/CVERecord?id=CVE-2026-64863)
- [NVD entry CVE-2026-64863](https://nvd.nist.gov/vuln/detail/CVE-2026-64863)
- [github.com](https://github.com/goshs-labs/goshs/security/advisories/GHSA-hq33-8jgp-8qq3)
- [github.com](https://github.com/goshs-labs/goshs/commit/0444ac6b1a8176ddae70d940adf7a26b2e5a6c29)
- [github.com](https://github.com/goshs-labs/goshs/releases/tag/v2.1.4)

---
Source page: https://erroneo.us/security/cve/CVE-2026-64863/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt