CVE-2026-64863: goshs --no-delete WebDAV MOVE bypass allows file deletion/overwrite
Vulnerability summary
CVE-2026-64863 is a critical (CVSS 9.1) Improper Access Control vulnerability in goshs-labs goshs. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 28-07-2026PublishedVulnerability first disclosed.
- 29-07-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- NVDNIST9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS trend
Probability
0.63%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
Increase +0.27 pp
From 0.36% on 22-09-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Github.com/patrickhener1 product
- goshs≤ 1.1.4 | All versions (No fix recorded)
Github.com/patrickhener/goshs1 product
- v2< 2.1.4
Goshs-labs1 product
- goshs< 2.1.4
Goshs.de1 product
- goshs≤ 1.1.4 | All versions (No fix recorded)
Goshs.de/goshs1 product
- v2< 2.1.4
5 vendors · 5 products
References
4 links- github.com/goshs-labs/goshsPACKAGE