CVE-2026-40885: goshs's public collaborator feed leaks .goshs ACL credentials and enables unauthorized access
CVE-2026-40885 · Severity: high · CVSS 8.8 · Published 2026-04-21
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.
Yes. github.com/patrickhener/goshs/v2 (Go): upgrade to 2.0.0-beta.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-40885?
Check whether you run github.com/patrickhener/goshs (Go), github.com/patrickhener/goshs/v2 (Go) or Goshs at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
github.com/patrickhener/goshs/v2 (Go): upgrade to 2.0.0-beta.6 or later
go get github.com/patrickhener/goshs/v2@v2.0.0-beta.6