Description
Information disclosure in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 155.
Published: 2026-09-01
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 03 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla firefox Mobile
CPEs cpe:2.3:a:mozilla:firefox_mobile:*:*:*:*:*:android:*:*
Vendors & Products Mozilla firefox Mobile

Wed, 02 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-201
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 01 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}


Tue, 01 Sep 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Weaknesses CWE-200
Vendors & Products Mozilla
Mozilla firefox

Tue, 01 Sep 2026 12:45:00 +0000

Type Values Removed Values Added
Description Information disclosure in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 155.
Title Information disclosure in the WebExtensions component in Firefox for Android
References

Subscriptions

Mozilla Firefox Firefox Mobile
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-09-01T14:59:34.837Z

Reserved: 2026-09-01T07:25:25.784Z

Link: CVE-2026-84127

cve-icon Vulnrichment

Updated: 2026-09-01T14:59:26.703Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-01T13:20:06.640

Modified: 2026-09-03T13:00:40.473

Link: CVE-2026-84127

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-01T12:18:54Z

Links: CVE-2026-84127 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-02T04:30:04Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

  • CWE-201

    Insertion of Sensitive Information Into Sent Data