CVE-2026-40885

High · 8.8

CVSS

8.8

EPSS

0.5%

Published

Apr 21, 2026

CISA due date

—

The record

goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs leaks file-based ACL credentials through its public collaborator feed when the server is deployed without global basic auth. Requests to .goshs-protected folders are logged before authorization is enforced, and the collaborator websocket broadcasts raw request headers, including Authorization. An unauthenticated observer can capture a victim's folder-specific basic-auth header and replay it to read, upload, overwrite, and delete files inside the protected subtree. This vulnerability is fixed in 2.0.0-beta.6.

Affected packages

Ecosystem	Package	Introduced	Fixed

Related vulnerabilities

GHSA-7h3j-592v-jcrp goshs's public collaborator feed leaks .goshs ACL credentials and enables unauthorized… Same vulnerability