# preact (npm) vulnerabilities

1 known vulnerability (1 high), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 11.2.0 (Nov 6, 2026): no advisory affects it
- Newest unaffected release: 11.2.0 (Nov 6, 2026), the latest release
- Weekly downloads: 53.6M
- Dependents: 129
- Releases: 292 since 1.2.0 (Sep 11, 2015)
- Registry: https://www.npmjs.com/package/preact
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-22028: 10.26.5 to 10.26.9 (10.26.10 is outside it); 10.27.0 to 10.27.2 (10.27.3 is outside it); 10.28.0 to 10.28.1 (10.28.2 is outside it)

## Advisories (1)

### [CVE-2026-22028](https://cve.now/CVE-2026-22028): Preact has JSON VNode Injection issue

- Severity: High 7.2
- Published: Jan 8, 2026
- Affected: from 10.26.5, fixed in 10.26.10; from 10.27.0, fixed in 10.27.3; from 10.28.0, fixed in 10.28.2.
- Fixed in 10.26.10 (released Jan 6, 2026, 2 days before disclosure), 10.27.3 (released Jan 6, 2026, 2 days before disclosure) and 10.28.2 (released Jan 6, 2026, 2 days before disclosure).
- The latest release, 11.2.0, is not affected.
- 4.9% of preact downloads last week were affected versions (3M).

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/packages/npm/preact
Site guide for agents: https://cve.now/llms.txt
Uses NVD data; not endorsed by NVD.