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CVE-2026-40903— Goshs - ArtiPACKED Vulnerability – GitHub Actions Credential Persistence

Quick assessment

Affected
patrickhener goshs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

goshs是Patrick Hener个人开发者的一个用Go编写的简单HTTP Server。 goshs 2.0.0-beta.6之前版本存在安全漏洞，该漏洞源于ArtiPACKED问题，可能导致GITHUB_TOKEN通过工作流构件泄露。

CVSS 9.1 · Critical EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-40903

Vulnerability Information
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Vulnerability Title
Goshs - ArtiPACKED Vulnerability – GitHub Actions Credential Persistence
Source: CVE Program / CVE List V5
Vulnerability Description
goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.6, goshs has an ArtiPACKED vulnerability. ArtiPACKED can lead to leakage of the GITHUB_TOKEN through workflow artifacts, even though the token is not present in the repository source code. This vulnerability is fixed in 2.0.0-beta.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
从非可信控制范围包含功能例程
Source: CVE Program / CVE List V5
Vulnerability Title
goshs 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
goshs是Patrick Hener个人开发者的一个用Go编写的简单HTTP Server。 goshs 2.0.0-beta.6之前版本存在安全漏洞，该漏洞源于ArtiPACKED问题，可能导致GITHUB_TOKEN通过工作流构件泄露。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
patrickhener goshs < 2.0.0-beta.6 -

II. Public POCs for CVE-2026-40903

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III. Intelligence Information for CVE-2026-40903

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Vendor Advisories for CVE-2026-40903 (1)

Same Patch Batch · patrickhener · 2026-04-21 · 5 CVEs total

CVE-2026-40884 9.8 CRITICAL goshs: Empty-username SFTP password authentication bypass in goshs
CVE-2026-40876 SFTP root escape via prefix-based path validation in goshs
CVE-2026-40883 goshs: CSRF in state-changing GET routes enables authenticated file deletion and directory
CVE-2026-40885 goshs: Public collaborator feed leaks .goshs ACL credentials and enables unauthorized acce

IV. Related Vulnerabilities

Same product: goshs
Same vendor: patrickhener
Same weakness: CWE-829

V. Comments for CVE-2026-40903

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