Is CVE-2026-44458 actively exploited?

No active exploitation of CVE-2026-44458 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44458 be exploited remotely?

Yes. CVE-2026-44458 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-44458?

CVE-2026-44458 has a CVSS score of 4.3 (MEDIUM).

HOME VULNERABILITIESCVE-2026-44458

MEDIUM

CVE-2026-44458

CWE-74Published: May 13, 2026· Updated: May 13, 2026

4.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-44458 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.