CVE-2026-8965

Analyzed Analyzed - Analysis Complete

Information Disclosure in Firefox DOM Security Component

Publication date: 2026-05-19

Last updated on: 2026-05-20

Assigner: Mozilla Corporation

Description

Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-05-19

Last Modified

2026-05-20

Generated

2026-06-30

AI Q&A

2026-05-19

EPSS Evaluated

2026-06-28

NVD

CVE-2026-8965

EUVD

EUVD-2026-30913

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 151.0.0 (exc)
mozilla	thunderbird	to 151.0.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This vulnerability is an information disclosure issue within the Document Object Model (DOM) security component of Firefox. It means that sensitive information could potentially be exposed due to a flaw in how the browser handles security in the DOM.

The issue was addressed and fixed in Firefox version 151.

Impact Analysis

This vulnerability could lead to unauthorized disclosure of information through the browser's DOM security component. An attacker might exploit this to access sensitive data that should be protected, potentially compromising user privacy or security.

Mitigation Strategies

The vulnerability was fixed in Firefox 151. To mitigate this vulnerability, you should update your Firefox browser to version 151 or later.

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