CVE-2026-84127

medium

Information disclosure in the WebExtensions component in Firefox for Android.

Vendor / product: Mozilla — firefox mobile

Information disclosure in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 155.

CVSS

4.3

4.3 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)

Timeline (UTC)

Published: 2026-09-01 13:20

Modified: 2026-09-03 13:00

NVD status: Analyzed

Last synced 1 day ago

Verified against the source API 2026-10-27 06:50 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

mozilla / firefox_mobile <155.0

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

NVD CVE API 2.0 — fetched 2026-10-27 06:50 UTC · record ↗