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CVE-2026-40883

8.1 · HIGH

goshs is a SimpleHTTPServer written in Go.

Published Apr 21, 2026CWE-352EPSS 0.19%

Overview

CVE-2026-40883 is a high-severity vulnerability. It was published on April 21, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/patrickhener/goshs/security/advisories/GHSA-jrq5-hg6x-j6g3GitHubgithub.com/patrickhener/goshs/security/advisories/GHSA-jrq5-hg6x-j6g3

How CyberStrike helps

Frequently asked questions

What is CVE-2026-40883?

CVE-2026-40883 is a high-severity vulnerability. It was published on April 21, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-40883?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-40883?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-40883?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-40883 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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