Vulnerabilities CVE-2026-44458

CVE-2026-44458

Medium

Open

TLP:CLEAR

Hono: CSS Declaration Injection via Style Object Values in JSX SSR

NVD CVE.org

Critical Infrastructure

AI Analysis

No AI analysis yet.

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, the JSX renderer escapes style attribute object values for HTML but not for CSS. Untrusted input in a style object value or property name can therefore inject additional CSS declarations into the rendered style attribute. The impact is limited to CSS and does not allow JavaScript execution or HTML attribute breakout. This vulnerability is fixed in 4.12.18.

Details

CVSS Score: 4.3
EPSS Score ⓘ: 0.20%

9.8th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Confidence: 90%
Published: May 13, 2026
Last Modified: May 14, 2026

Notes

No notes yet. Click "Add Note" to create the first analysis note.

Opinions

No opinions yet. Be the first to assess this intelligence.