goshs-labs goshs up to 2.1.4 SendFile httpserver/handler.go sendFile improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k2.70

Summaryinfo

A vulnerability, which was classified as problematic, has been found in goshs-labs goshs up to 2.1.4. This vulnerability affects the function sendFile of the file httpserver/handler.go of the component SendFile Handler. The manipulation leads to improper authorization. This vulnerability is referenced as CVE-2026-66064. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in goshs-labs goshs up to 2.1.4 and classified as problematic. This issue affects the function sendFile of the file httpserver/handler.go of the component SendFile Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality. The summary by CVE is:

goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/handler.go sendFile handler opened files using a cleaned path but derived the authorization filename from raw req.URL.Path, so a trailing slash could bypass .goshs ACL-file protection and block-list checks. This issue is fixed in version 2.1.5.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-66064 since 07/24/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 2.1.5 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: goshs 2.1.5

Timelineinfo

07/24/2026 CVE reserved
07/28/2026 +4 days VulDB entry created
07/29/2026 +0 days Advisory disclosed
07/29/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-66064 (🔒)
GCVE (CVE): GCVE-0-2026-66064
GCVE (VulDB): GCVE-100-384035

Entryinfo

Created: 07/29/2026 00:33
Changes: 07/29/2026 00:33 (57)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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