CVE-2026-40883

What it is

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 trigger destructive actions such as ?delete and ?mkdir because goshs relies on HTTP basic auth alone and performs no CSRF, Origin, or Referer validation for those routes. This vulnerability is fixed in 2.0.0-beta.6.

At a glance

Exploitability

Can be exploited over the network without logging in, but needs a user to act. High risk of data tampering, service disruption.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-04-21 20:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-26 00:10 UTC Last updatedMost recent change to the record

Details

Published

2026-04-21 20:17 UTC

Last modified

2026-10-26 00:10 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-352 · Cross-site request forgery

Record status

Analyzed

Affected

• Goshs 2.0.0

Attack profile CVSS 4.0 · 6.1

Attack vector

Network

Complexity

Low

Attack requirements

Present

Privileges needed

None

User interaction

Passive

Confidentiality

None

Integrity

High

Availability

High