Unauthenticated file deletion via WebDAV MOVE bypass
Published Jul 28, 2026 · Updated Jul 28, 2026
Access control bypass in Patrick Hener goshs before 2.1.4 allows remote attackers to delete or overwrite files through WebDAV MOVE requests. The wdGuard in httpserver/server.go classifies MOVE as write-only and never applies the NoDelete check, although MOVE renames the source and Overwrite: T removes an existing destination. Reachability requires WebDAV with --no-delete; any configured authentication remains a separate gate, and successful requests delete or replace served files.
Summary
What happened
Access control bypass in Patrick Hener goshs before 2.1.4 allows remote attackers to delete or overwrite files through WebDAV MOVE requests. The wdGuard in httpserver/server.go classifies MOVE as write-only and never applies the NoDelete check, although MOVE renames the source and Overwrite: T removes an existing destination. Reachability requires WebDAV with --no-delete; any configured authentication remains a separate gate, and successful requests delete or replace served files.
The record
- CVE
- CVE-2026-64863
- Published
- Jul 28, 2026
- Updated
- Jul 28, 2026
- Vendor
- Patrick Hener
- Product
- goshs
- Classifications
- CWE-284, T1485
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 28, 2026CVE publishedPublication date reported by the CVE source.
- Jul 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.1.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Upstream WebDAV MOVE proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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