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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-44458)

ID	Name	Product	Family	Type	Severity
463743	Echo: hono: security update to 4.12.18	Tenable Cloud Security	Echo Local Security Checks	Local	medium
463743	Echo: hono: security update to 4.12.18	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
441633	SCA: security update for hono (GHSA-qp7p-654g-cw7p)	Tenable Cloud Security	SCA Checks	Local	medium
441633	SCA: security update for hono (GHSA-qp7p-654g-cw7p)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium

Detections

Analytics

CVE-2026-44458

medium

Tenable Plugins

medium

medium

medium

medium