Server-side Request Forgery (SSRF) Affecting code-server package, versions <4.99.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published14 May 2025
- disclosed9 May 2025
- creditUnknown
Introduced: 9 May 2025
CVE-2025-47269 (opens in a new tab)How to fix?
Upgrade code-server to version 4.99.4 or higher.
Overview
code-server is an application that allows running VS Code on a remote server.
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the proxy subpath. An attacker can gain unauthorized access to session tokens by crafting a malicious URL that manipulates the proxy functionality to redirect to an arbitrary domain. This occurs due to improper validation of an expected local proxy port for requests, allowing proxying to an arbitrary domain.
Note: This vulnerability requires the built-in proxy in the Code-Server to be enabled