CVE-2026-84130

Analyzed Analyzed - Analysis Complete

Information Disclosure in Firefox WebGPU Component

Publication date: 2026-09-01

Last updated on: 2026-09-03

Assigner: Mozilla Corporation

Description

Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-01

Last Modified

2026-09-03

Generated

2026-09-21

AI Q&A

2026-09-01

EPSS Evaluated

2026-09-20

NVD

CVE-2026-84130

EUVD

EUVD-2026-69079

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 153.2.0 (exc)
mozilla	firefox	From 154.0.0 (inc) to 155.0.0 (exc)
mozilla	thunderbird	to 153.2.0 (exc)
mozilla	thunderbird	From 154.0 (inc) to 155.0 (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 is an information disclosure vulnerability in Firefox's Graphics: WebGPU component. It was patched in Firefox 155 and Firefox ESR 153.2.

Detection Guidance

Detection of this vulnerability requires checking the installed version of Firefox or Firefox ESR. Compare the version against Firefox 155 or Firefox ESR 153.2. If the version is older, the system is vulnerable. Use commands like 'firefox --version' or 'apt list --installed | grep firefox' to check versions.

Impact Analysis

An attacker could exploit this to access sensitive information through the WebGPU component in Firefox before version 155 or Firefox ESR before 153.2.

Compliance Impact

The provided CVE data does not specify how this vulnerability affects compliance with standards like GDPR or HIPAA. The vulnerability involves information disclosure in the Graphics: WebGPU component, but no direct impact on regulatory compliance is mentioned.

Mitigation Strategies

Update Firefox to version 155 or later and Firefox ESR to version 153.2 or later to address the Graphics: WebGPU information disclosure vulnerability.

Hi! I’m here to help you understand CVE-2026-84130. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70