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CVE-2026-50188Kirby: 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(), 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.

6.9 MEDIUMEPSS 0.44%Not in KEVNVD: Deferred

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
6.9MEDIUM4.0GitHub_M (CNA)CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N

Details

CVE ID
CVE-2026-50188
Status
Deferred
Assigner (CNA)
GitHub_M
Published
Jul 9, 2026
Last modified
2026-10-25 17:10 UTC
Weaknesses
  • CWE-93 · Improper Neutralization of CRLF Sequences ('CRLF Injection')
  • CWE-113 · Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 07:53 UTC.