---
title: "1.13.1 release notes"
canonical_url: "https://www.nutrient.io/guides/web/release-notes/1-13-1/"
md_url: "https://www.nutrient.io/guides/web/release-notes/1-13-1.md"
last_updated: "2026-05-23T00:08:18.183Z"
description: "Nutrient Web SDK 1.13.1 release notes — security patch for high-severity libpng CVEs."
---

Nutrient Web SDK 1.13.1 is a security patch that updates the vendored libpng dependency from 1.6.55 to 1.6.56, addressing two high-severity CVEs. See the [changelog](https://www.nutrient.io/guides/web/changelog.md#1.13.1) for full details.

### Security

This release resolves the following vulnerabilities in libpng:

- **CVE-2026-33416** (CVSS 7.5) — A denial-of-service vulnerability in libpng 1.6.55.

- **CVE-2026-33636** (CVSS 7.6) — A potentially exploitable vulnerability in libpng 1.6.55.

Both are resolved by updating to libpng 1.6.56. No API changes or migration steps are required.
---

## Related pages

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