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CVE-2026-50188

Kirby: Request header injection in `Http\Remote` PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
getkirby / kirbyaffected < 4.9.4; affected >= 5.0.0, < 5.4.4

CWE

CWE-93, CWE-113

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.