---
id: "CVE-2026-113680"
kind: "vulnerability"
aliases: ["CVE-2026-113680"]
title: "HarfBuzz: crafted font crashes apps that shape text with it"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["browsers", "font-handling", "harfbuzz", "package", "text-rendering"]
not_affected_if: ["trusted-fonts-only"]
published_at: "2026-10-20T16:17:12+00:00"
first_seen_at: "2026-10-23T21:57:20+00:00"
updated_at: "2026-10-25T03:44:41+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113680", "first_seen_at": "2026-10-23T21:57:20+00:00"}]
---

# HarfBuzz: crafted font crashes apps that shape text with it

HarfBuzz, the text shaping library, has a NULL pointer dereference in its experimental WebAssembly shaper host imports. A crafted font whose embedded wasm module passes out-of-range addresses with non-zero lengths crashes any application that shapes text with that font.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- unknown

## Fix

- unknown

## Timeline

- 2026-10-23T21:57:20+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-113680

## From the sources

HarfBuzz from 8.0.0 through 14.6.0 contains a NULL pointer dereference vulnerability in the experimental WebAssembly shaper host imports buffer_set_contents, face_create, and font_set_coords. Attackers can supply a crafted font whose embedded wasm module passes out-of-range addresses with non-zero lengths, crashing any application that shapes text with the font.

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