Is CVE-2026-40883 actively exploited?

No active exploitation of CVE-2026-40883 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40883 be exploited remotely?

Yes. CVE-2026-40883 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40883?

CVE-2026-40883 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2026-40883

CWE-352Published: April 21, 2026· Updated: Apr 27, 2026

8.1

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.1th

Official 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.

NVD Source

Technical Analysis

CVE-2026-40883 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.