shreemaan-abhishek opened a new pull request, #13329:
URL: https://github.com/apache/apisix/pull/13329
### Description
The wolf-rbac plugin populates the `clientIP` parameter sent to
wolf-server's `/wolf/rbac/access_check` endpoint by reading
`ctx.var.http_x_real_ip`, the **raw** `X-Real-IP` request header. This bypasses
nginx's `real_ip` module: even though APISIX configures `real_ip_from = {
"127.0.0.1", "unix:" }` by default — meaning nginx correctly rejects
`X-Real-IP` from untrusted sources when computing `$remote_addr` — the plugin
reads the original header directly, so any external client can supply an
arbitrary `clientIP` value.
This change replaces the raw-header read with
`core.request.get_remote_client_ip(ctx)`, which returns `$remote_addr` after
`real_ip` processing. The new behavior is:
- Behind a trusted proxy (listed in `real_ip_from`): forwards the real
client IP from the trusted header — same behavior the previous code intended.
- From untrusted sources: forwards the actual TCP peer address; the spoofed
header is ignored, matching nginx's standard handling.
Which issue(s) this PR fixes:
Fixes #
### Checklist
- [x] I have explained the need for this PR and the problem it solves
- [x] I have explained the changes or the new features added to this PR
- [ ] I have added tests corresponding to this change
- [ ] I have updated the documentation to reflect this change
- [ ] I have verified that this change is backward compatible (If not,
please discuss on the [APISIX mailing
list](https://github.com/apache/apisix/tree/master#community) first)
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