---
id: "CVE-2026-124923"
page: "https://infrastack.ai/live/CVE-2026-124923"
kind: "vulnerability"
aliases: ["CVE-2026-124923"]
title: "Firefox: sandbox escape in the Agent component, fixed in 160"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browser", "firefox", "other"]
not_affected_if: ["firefox-160-or-later"]
published_at: "2026-11-10T14:17:26+00:00"
first_seen_at: "2026-11-10T14:22:18+00:00"
updated_at: "2026-11-10T14:24:25+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124923", "first_seen_at": "2026-11-10T14:22:18+00:00"}]
exploit_sources: []
---

# Firefox: sandbox escape in the Agent component, fixed in 160

Link for people: https://infrastack.ai/live/CVE-2026-124923 (this .md is for agents)

The sources describe a sandbox escape in an 'Agent component' that was fixed in Firefox 160. The sources do not say what an attacker gains beyond escaping the sandbox.

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

## How to check

- Check the installed Firefox version (Help > About Firefox, or `firefox --version`) against `160`

## Fix

- Firefox: `160`

## Timeline

- 2026-11-10T14:22:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124923

## From the sources

Sandbox escape in the Agent 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_