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CVE-2026-54719— goshs: File-based .goshs ACL authorization bypass via the ?bulk zip-download route (unauthenticated read; residual of CVE-2026-40189)

Quick assessment

Affected
goshs-labs goshs
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

goshs-labs goshs是goshs-labs组织的一个Web服务器软件。 goshs-labs goshs 2.1.1之前版本存在授权问题漏洞，该漏洞源于httpserver/updown.go中的bulkDownload处理程序未调用findEffectiveACL或applyCustomAuth，可能导致未经验证读取受.goshs文件夹ACL和阻止列表保护的文件。

CVSS 7.5 · High EPSS 0.47% · P38

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 1

VendorProduct Version RangeStatus
goshs-labs goshs < 2.1.1 affected
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I. Basic Information for CVE-2026-54719

Vulnerability Information
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Vulnerability Title
goshs: File-based .goshs ACL authorization bypass via the ?bulk zip-download route (unauthenticated read; residual of CVE-2026-40189)
Source: CVE Program / CVE List V5
Vulnerability Description
goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.1, the httpserver/updown.go bulkDownload handler for ?bulk&file= ZIP downloads did not call findEffectiveACL or applyCustomAuth, allowing unauthenticated reads of files protected only by .goshs folder ACLs and block lists. This issue is fixed in version 2.1.1. This vulnerability exists due to an incomplete fix for CVE-2026-40189.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
goshs-labs goshs 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
goshs-labs goshs是goshs-labs组织的一个Web服务器软件。 goshs-labs goshs 2.1.1之前版本存在授权问题漏洞，该漏洞源于httpserver/updown.go中的bulkDownload处理程序未调用findEffectiveACL或applyCustomAuth，可能导致未经验证读取受.goshs文件夹ACL和阻止列表保护的文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
goshs-labs goshs < 2.1.1 -

II. Public POCs for CVE-2026-54719

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 12584 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-54719

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Patches & Fixes for CVE-2026-54719 (1)

Vendor Advisories for CVE-2026-54719 (1)

Other References for CVE-2026-54719 (1)

Same Patch Batch · goshs-labs · 2026-07-28 · 5 CVEs total

CVE-2026-62325 9.1 CRITICAL goshs SFTP authentication bypass via empty password (incomplete fix of CVE-2026-40884)
CVE-2026-64863 9.1 CRITICAL goshs --no-delete WebDAV MOVE bypass allows file deletion/overwrite
CVE-2026-66063 6.5 MEDIUM goshs has a Path Traversal issue
CVE-2026-66064 5.3 MEDIUM goshs has ACL Bypass & Path Traversal

IV. Related Vulnerabilities

Same product: goshs
Same vendor: goshs-labs
Same weakness: CWE-862

V. Comments for CVE-2026-54719

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