CVE-2026-64863: CWE-284: Improper Access Control in goshs-labs goshs
CVE-2026-64863 is an improper access control vulnerability in goshs, a single-binary file server. Versions prior to 2.1.4 incorrectly handled WebDAV MOVE requests, allowing deletion or overwriting of files despite the --no-delete option. This issue is fixed in version 2.1.4.
AI Analysis
Technical Summary
The vulnerability in goshs-labs goshs involves the httpserver/server.go wdGuard component treating WebDAV MOVE as a write-only method without enforcing the --no-delete flag. This flaw allows WebDAV clients to delete or overwrite files by sending MOVE requests with the Overwrite header set to true. The issue affects all versions before 2.1.4 and is resolved in version 2.1.4.
Potential Impact
An unauthenticated remote attacker can delete or overwrite files on the affected goshs server by exploiting the improper enforcement of access controls on WebDAV MOVE requests. This can lead to denial of service or data integrity loss. The CVSS score of 9.1 reflects a critical severity with high impact on integrity and availability.
Mitigation Recommendations
Upgrade to goshs version 2.1.4 or later, where the vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed fixed in 2.1.4.
CVE-2026-64863: CWE-284: Improper Access Control in goshs-labs goshs
Description
CVE-2026-64863 is an improper access control vulnerability in goshs, a single-binary file server. Versions prior to 2.1.4 incorrectly handled WebDAV MOVE requests, allowing deletion or overwriting of files despite the --no-delete option. This issue is fixed in version 2.1.4.
CVSS v3.1
Score 9.1critical
Affected software
goshs-labs
goshs
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in goshs-labs goshs involves the httpserver/server.go wdGuard component treating WebDAV MOVE as a write-only method without enforcing the --no-delete flag. This flaw allows WebDAV clients to delete or overwrite files by sending MOVE requests with the Overwrite header set to true. The issue affects all versions before 2.1.4 and is resolved in version 2.1.4.
Potential Impact
An unauthenticated remote attacker can delete or overwrite files on the affected goshs server by exploiting the improper enforcement of access controls on WebDAV MOVE requests. This can lead to denial of service or data integrity loss. The CVSS score of 9.1 reflects a critical severity with high impact on integrity and availability.
Mitigation Recommendations
Upgrade to goshs version 2.1.4 or later, where the vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed fixed in 2.1.4.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-20T18:31:39.291Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a692bbe9c2644c7f84c148e
Added to database: 07/28/2026, 22:22:54 UTC
Last enriched: 08/05/2026, 15:18:12 UTC
Last updated: 09/11/2026, 22:06:34 UTC
Views: 75
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