Name: CVE-2026-106016: Protection Mechanism Failure
Creator: Rapid7
Published: 2026-10-06T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-106016, CWE-693, CVSS 9.8, EPSS 0.00323

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 157.0.1 and Thunderbird 158.

CVSS Details

CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Mfsa2026 104	—	Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 157.0.1	Oct 6, 2026	Oct 6, 2026
Mozilla Thunderbird	—	Upgrade to Mozilla Thunderbird version 158.0Upgrade to the latest version of Mozilla Thunderbird	Oct 13, 2026	Oct 13, 2026

Prioritise with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence