UBUNTU-CVE-2026-22028

Preact, a lightweight web development framework, JSON serialization protection to prevent Virtual DOM elements from being constructed from arbitrary JSON. A regression introduced in Preact 10.26.5 caused this protection to be softened. In applications where values from JSON payloads are assumed t...

Access of Resource Using Incompatible Type ('Type Confusion')

Overview org.webjars.npm:preact is a fast 3kB alternative to React with the same modern API. Affected versions of this package are vulnerable to Access of Resource Using Incompatible Type 'Type Confusion' during rendering in the vnode constructor. An attacker can inject arbitrary HTML or execute...

Preact has JSON VNode Injection issue

Impact Vulnerability Type: HTML Injection via JSON Type Confusion Affected Versions: Preact 10.26.5 through 10.28.1 Severity: Low to Medium see below Who is Impacted? Applications using affected Preact versions are vulnerable if they meet all of the following conditions: 1. Pass unmodified,...