CVE-2026-40884

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Source
https://cve.org/CVERecord?id=CVE-2026-40884
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40884.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40884
Aliases
Published
2026-04-21T19:39:25.698Z
Modified
2026-07-08T08:13:12.495384339Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
goshs: Empty-username SFTP password authentication bypass in goshs
Details

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.6, goshs contains an SFTP authentication bypass when the documented empty-username basic-auth syntax is used. If the server is started with -b ':pass' together with -sftp, goshs accepts that configuration but does not install any SFTP password handler. As a result, an unauthenticated network attacker can connect to the SFTP service and access files without a password. This vulnerability is fixed in 2.0.0-beta.6.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40884.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-306"
    ]
}
References

Affected packages

Git / github.com/goshs-labs/goshs

Affected ranges

Type
GIT
Repo
https://github.com/goshs-labs/goshs
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2f6b5d601d494601fa43fad9a712ee6117b7dbcd
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.0.0-beta.6"
        }
    ]
}

Affected versions

1.*
1.1.3
v0.*
v0.0.1
v0.0.2
v0.0.3
v0.0.4
v0.0.5
v0.0.6
v0.0.8
v0.0.9
v0.1.0
v0.1.1
v0.1.2
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v0.1.7
v0.1.8
v0.1.9
v0.2.0
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
v0.4.0
v0.4.1
v0.4.2
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.1
v1.1.2
v1.1.4
v2.*
v2.0.0-beta.1
v2.0.0-beta.2
v2.0.0-beta.3
v2.0.0-beta.4
v2.0.0-beta.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40884.json"