VULNERABILITY INTELLIGENCE

CVE-2026-50188

EPSS probability0.44%
CISA KEVNot currently listed
Published2026-07-09
Last modified2026-10-25

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-93

Primary references