HTTP request smuggling In golang-1.26
Description
ReverseProxy can forward queries containing parameters not visible to Rewrite functions. When used with a Rewrite function, or a Director function which parses query parameters, ReverseProxy sanitizes the forwarded request to remove query parameters which are not parsed by url.ParseQuery. ReverseProxy does not take ParseQuery's limit on the total number of query parameters (controlled by GODEBUG=urlmaxqueryparams=N) into account. This can permit ReverseProxy to forward a request containing a query parameter that is not visible to the Rewrite function. For example, the query "a1=x&a2=x&...&a10000=x&hidden=y" can forward the parameter "hidden=y" while hiding it from the proxy's Rewrite function.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Component | Affected version | Patched versions |
|---|---|---|---|
 rpm rhel10 | - | - | |
rpm rhel9 | - | - | |
rpm rhel8 | - | - | |
rpm rhel8 | - | - | |
rpm rhel8 | - | - | |
rpm rhel8 | - | - | |
rpm rhel9 | - | - | |
rpm rhel8 | - | - | |
rpm rhel8 | - | - | |
rpm rhel10 | - | - |
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