CVE-2026-74972
Undergoing Analysis Undergoing Analysis - In Progress

Information Disclosure in Firefox DOM Push Subscriptions

Publication date: 2026-08-18

Last updated on: 2026-08-18

Assigner: Mozilla Corporation

Description
Information disclosure in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1.

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Meta Information

Published
2026-08-18
Last Modified
2026-08-18
Generated
2026-08-18
AI Q&A
2026-08-18
EPSS Evaluated
N/A
NVD
CVE-2026-74972
EUVD
EUVD-2026-60667

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
mozilla firefox to 154 (inc)
mozilla firefox_esr to 140.14 (inc)
mozilla firefox_esr to 153.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability involves information disclosure in the DOM Push Subscriptions component of Firefox browsers. It was patched in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1.

Detection Guidance

This vulnerability is specific to Firefox and Firefox ESR versions before 154, 140.14, and 153.1 respectively. Detection involves checking installed versions of Firefox or Firefox ESR. Use commands like 'firefox --version' or 'firefox-esr --version' to verify versions. If versions are below the patched releases, the system is vulnerable.

Impact Analysis

An attacker could exploit this flaw to access sensitive information stored in push subscriptions, potentially leading to unauthorized data exposure or privacy breaches.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA due to unauthorized data exposure, potentially resulting in legal penalties or reputational damage.

Mitigation Strategies

Update Firefox to version 154 or later, Firefox ESR to version 140.14 or later, or Firefox ESR to version 153.1 or later to address the information disclosure vulnerability in the DOM Push Subscriptions component.

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