What is CVE-2026-40883?

CVE-2026-40883 is a high-severity vulnerability in Goshs, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.1/10. Published 2026-04-21.

How severe is CVE-2026-40883?

High severity. CVSS v3 base score is 8.1 out of 10.

CSRF in Goshs

CVE-2026-40883

goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs contains a cross-site request forgery issue in its state-changing HTTP GET routes. An external attacker can cause an already authenticated browser to trigg…

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.001 (4.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

Affected products

Goshs — versions 2.0.0
Patrickhener Goshs — versions >= 2.0.0-beta.4, < 2.0.0-beta.6

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-40883?: CVE-2026-40883 is a high-severity vulnerability in Goshs, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.1/10. Published 2026-04-21.
How severe is CVE-2026-40883?: High severity. CVSS v3 base score is 8.1 out of 10.