goshs SFTP authentication bypass via empty password (incomplete fix of CVE-2026-40884)

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-62325
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-28 23:17:10 UTC
Updated2026-07-30 19:19:45 UTC
Descriptiongoshs is a feature-rich single-binary file server for red teamers and developers. From 2.1.3 until 2.1.4, the sftpserver/sftpserver.go password handler used Username != "" && Password != "", so running goshs with -b 'admin:' -sftp and no -fkf left both SFTP authentication handlers unset and allowed unauthenticated file access. This issue is fixed in version 2.1.4.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.003440000 probability, percentile 0.270670000 (date 2026-08-01)

Problem Types: CWE-306 | CWE-306 CWE-306: Missing Authentication for Critical Function

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1CNADECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Goshs-labs Goshs affected >= 2.1.3, < 2.1.4 Not specified

References

ReferenceSourceLinkTags
github.com/goshs-labs/goshs/commit/32f4a0e1790a709f722d0f3b2341f139d003180a [email protected] github.com
github.com/goshs-labs/goshs/security/advisories/GHSA-rjrw-mjq6-hpmm 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/goshs-labs/goshs/releases/tag/v2.1.4 [email protected] github.com
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