---
id: "CVE-2026-124852"
page: "https://infrastack.ai/live/CVE-2026-124852"
kind: "vulnerability"
aliases: ["CVE-2026-124852"]
title: "Firefox: boundary check flaw in WebGL canvas graphics component"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["browser", "firefox", "runtime", "webgl"]
not_affected_if: ["firefox-160-or-later"]
published_at: "2026-11-10T14:17:16+00:00"
first_seen_at: "2026-11-10T14:22:13+00:00"
updated_at: "2026-11-10T14:26:45+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124852", "first_seen_at": "2026-11-10T14:22:13+00:00"}]
exploit_sources: []
---

# Firefox: boundary check flaw in WebGL canvas graphics component

Link for people: https://infrastack.ai/live/CVE-2026-124852 (this .md is for agents)

Firefox's Graphics CanvasWebGL component has incorrect boundary conditions, a memory-safety class of bug. The sources do not state what an attacker can achieve with it.

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

## How to check

- Check the Firefox version with Help > About Firefox, or the version string in `firefox --version`
- Versions below `160` are the ones the sources say were fixed in Firefox 160

## Fix

- Firefox: move to `160` or later (the sources say this was fixed in Firefox 160)

## Timeline

- 2026-11-10T14:22:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124852

## From the sources

Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 160.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_