CVE-2026-40903 CRITICAL

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

Vendor Patrickhener
Product goshs
Weakness CWE-829 · Inclusion from untrusted sphere
Published April 21, 2026
Last update April 22, 2026
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 21, 2026 CVE published
April 22, 2026 Record updated