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    CVE-2026-66063

    goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/updown.go multipart upload handler split part.FileName() on / but did not reject .., allowing an unauthenticated upload with filename .. to create a file outside the served tree. This issue is fixed in version 2.1.5.

    Published:Jul 28, 2026
    Last Modified:Jul 30, 2026
    EPS:Jul 28, 2026
    EPSS Score:0.00233
    CVSS Score:6.5

    Affected Products

    Vendor
    Goshs
    Product
    Goshs

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-66064 (CVSS 5.3) — goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserv…
    CVE-2026-64863 (CVSS 9.1) — goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.4, the httpserv…
    CVE-2026-54719 (CVSS 7.5) — goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.1, the httpserv…
    CVE-2026-62325 (CVSS 9.1) — goshs is a feature-rich single-binary file server for red teamers and developers. From 2.1.3 until 2.1.4, the …
    CVE-2026-42091 (CVSS 6.5) — goshs is a SimpleHTTPServer written in Go. Prior to version 2.0.2, the PUT upload handler (httpserver/updown.g…
    CVE-2026-40903 (CVSS 9.1) — goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.6, goshs has an ArtiPACKED vulnerability. ArtiP…
    CVE-2026-40885 (CVSS 7.7) — goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs leaks file-based ACL crede…
    CVE-2026-40884 (CVSS 9.8) — goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.6, goshs contains an SFTP authentication bypass…
    CVE-2026-40883 (CVSS 6.1) — goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs contains a cross-site requ…
    CVE-2026-40876 (CVSS 8.7) — goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.6, goshs contains an SFTP root escape caused by…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High