What is CVE-2026-35392?

CVE-2026-35392 is a critical-severity vulnerability in Goshs, classified under Path Traversal. CVSS score: 9.8/10. Published 2026-04-06.

How severe is CVE-2026-35392?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Path Traversal in Goshs

CVE-2026-35392

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.3, PUT upload in httpserver/updown.go has no path sanitization. This vulnerability is fixed in 2.0.0-beta.3.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-04-06 · last modified 2026-07-24.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (50.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

Goshs — versions 2.0.0
Patrickhener Goshs — versions < 2.0.0-beta.3

Weakness classification (CWE)

CWE-22 — Path Traversal

References

github.com/patrickhener/goshs/security/advisories/GHSA-g8mv-vp7j-qp64 (Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-35392?: CVE-2026-35392 is a critical-severity vulnerability in Goshs, classified under Path Traversal. CVSS score: 9.8/10. Published 2026-04-06.
How severe is CVE-2026-35392?: Critical severity. CVSS v3 base score is 9.8 out of 10.