CVE-2026-50188 — Kirby: Request header injection in `Http\Remote`
Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins using the Kirby Http Remote class, including Remote::request(), Remote::get(…
Published: 2026-07-09 · CVSS: 6.9 · CVSS 4.0
Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins using the Kirby Http Remote class, including Remote::request(), Remote::get(), and Remote::post(), to send outgoing HTTP requests with untrusted data in the headers option could allow newline characters in a header value to inject a separate unintended request header to the remote service. This issue is fixed in versions 4.9.4 and 5.4.4.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7