CVE-2026-64863 json
goshs --no-delete WebDAV MOVE bypass allows file deletion/overwrite
published 2026-07-28 3 mo ago modified 2026-10-23 16 d ago also GHSA-hq33-8jgp-8qq3 , GO-2026-6136 , EUVD-2026-50081
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go goshs.de/goshs/v2 2.1.4
- go github.com/patrickhener/goshs/v2 2.1.4
- govulncheck-vulndb SLES for SAP applications 16.0, SLES 16.0 0.0.20260827T195228-160000.1.1
suse advisories SUSE-SU-2026:23625-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260827T195228-160000.1.1
opensuse advisories openSUSE-SU-2026:21761-1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/goshs-labs/goshs/security/advisories/GHSA-hq33-8jgp-8qq3 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | goshs.de/goshs/v2 | <2.1.4 |
2.1.4 |
| go | github.com/patrickhener/goshs/v2 | <2.1.4 |
2.1.4 |
| go | goshs.de/goshs | <=1.1.4 all versions |
no fix listed |
| go | github.com/patrickhener/goshs | <=1.1.4 all versions |
no fix listed |
Affected products
- goshs-labs goshs
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
Sources
- CVE List CVE-2026-64863
- GitHub Advisory GHSA-hq33-8jgp-8qq3
- NVD CVE-2026-64863
- OSV GO-2026-6136
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