Vulnerability in Goshs
CVE-2026-40188
goshs is a SimpleHTTPServer written in Go. From 1.0.7 to before 2.0.0-beta.4, the SFTP command rename sanitizes only the source path and not the destination, so it is possible to write outside of the root directory of the SFTP. This vulnerability is fixed in 2.0.0-beta.4.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Goshs — versions 2.0.0
- Patrickhener Goshs — versions >= 1.0.7, < 2.0.0-beta.4
Weakness classification (CWE)
References
- github.com/patrickhener/goshs/security/advisories/GHSA-2943-crp8-38xx (Exploit, Vendor Advisory)
- github.com/patrickhener/goshs/commit/141c188ce270ffbec087844a50e5e695b7da7744 (Patch)
- github.com/patrickhener/goshs/releases/tag/v2.0.0-beta.4 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-40188?
- CVE-2026-40188 is a high-severity vulnerability in Goshs, classified under CWE-1314. CVSS score: 7.7/10. Published 2026-04-10.
- How severe is CVE-2026-40188?
- High severity. CVSS v3 base score is 7.7 out of 10.