GHSA-7wpf-ch8f-5f4x: signalk-server has SSRF via absolute signalk.appIcon URL in the app store icon fetcher
The app store icon code (dist/appstore/icon-probe.js around line 200 and icon-bytes.js around line 138) resolves a plugin’s declared signalk.appIcon. Relative paths are pinned to the CDN, but an absolute http(s) URL is used as-is: the server fetches it, follows redirects, and stores any image/* response as the plugin’s icon, which is then served to the admin UI. Unrelated to GHSA-q59x-jc9f-gfqf.
References
- github.com/SignalK/signalk-server/commit/535104f655304c697d535252da397948e5101dc6
- github.com/SignalK/signalk-server/commit/7eeae00ac4aee5f04e21e3ff9527f57823e65a4d
- github.com/SignalK/signalk-server/releases/tag/v2.34.0
- github.com/SignalK/signalk-server/security/advisories/GHSA-7wpf-ch8f-5f4x
- github.com/advisories/GHSA-7wpf-ch8f-5f4x
- www.vulncheck.com/advisories/signal-k-server-2.28.0-beta.2-before-2.34.0-ssrf-via-app-store-appicon
Code Behaviors & Features
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