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VulnerabilityPublished

CVE-2026-118022: Mozilla Firefox · Sandbox escape due to use-after-free in the Disability Access APIs component

Affects Mozilla FirefoxSource CVE Database V5

0

Not known to be exploited.

Data as of 27 Oct 2026, 14:42 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

Users should update to Firefox version 159 or later, where this vulnerability has been fixed. Applying this official fix fully mitigates the issue. No additional mitigation steps are required beyond updating to the fixed version.

Description

CVE-2026-118022 is a use-after-free vulnerability in the Disability Access APIs component of Mozilla Firefox that allows sandbox escape. This vulnerability was fixed in Firefox version 159. The issue could enable an attacker to break out of the browser's sandbox environment, potentially leading to elevated privileges or code execution outside the intended security boundaries.

References

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