CVE-2026-40903

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.

CVSS v3.1 Score

9.1

CRITICAL

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

EPSS — Exploit Prediction

0.0004

Probability of exploitation

0.13%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-829 CWE-829

Affected Products

Vendor	Product	Versions
goshs	goshs	< 2.0.0
goshs	goshs	All
goshs	goshs	All
goshs	goshs	All
goshs	goshs	All
goshs	goshs	All

References

Advisories & Patches

https://github.com/patrickhener/goshs/security/advisories/GHSA-hpxj-9fgp-fhhf

Frequently Asked Questions

What is CVE-2026-40903? +

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. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-40903? +

CVE-2026-40903 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0004, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-40903? +

CVE-2026-40903 affects products from goshs, specifically: goshs. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-40903? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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