Server-side Request Forgery (SSRF) Affecting golang.org/x/net/http/httpproxy package, versions <0.36.0
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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- published5 Mar 2025
- disclosed4 Mar 2025
- creditJuho Forsén
Introduced: 4 Mar 2025
CVE-2025-22870 (opens in a new tab)How to fix?
Upgrade golang.org/x/net/http/httpproxy to version 0.36.0 or higher.
Overview
golang.org/x/net/http/httpproxy is a package for HTTP proxy determination based on environment variables, as provided by net/http's ProxyFromEnvironment function
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in proxy.go, because hostname matching against proxy patterns may treat an IPv6 zone ID as a hostname component. An environment variable value like *.example.com could be matched to a request intended for [::1%25.example.com]:80.