fix: prevent SSRF via absolute URL bypassing base_uri #830
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…-38w4) When base_uri is configured and a path argument contains an absolute URL with a different host, HTTParty now raises UnsafeURIError instead of sending the request (and any configured headers/credentials) to the unintended host. This prevents Server-Side Request Forgery (SSRF) attacks where an attacker controlling the path value could redirect requests to malicious servers and capture API keys or other sensitive headers. The validation can be bypassed with `skip_uri_validation: true` for legitimate use cases. Redirects are not validated to allow normal redirect flows. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Not sure if anyone has already raised this but this PR still doesn't fix the PoC given here GHSA-hm5p-x4rq-38w4 |
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The PoC uses the same host ( |
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When base_uri is configured and a path argument contains an absolute URL with a different host, HTTParty now raises UnsafeURIError instead of sending the request (and any configured headers/credentials) to the unintended host.
This prevents Server-Side Request Forgery (SSRF) attacks where an attacker controlling the path value could redirect requests to malicious servers and capture API keys or other sensitive headers.
The validation can be bypassed with
skip_uri_validation: truefor legitimate use cases. Redirects are not validated to allow normal redirect flows.🤖 Generated with Claude Code