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CVE-2026-18809

Medium

Description

Information disclosure in Firefox for Android and Firefox Focus for Android. This vulnerability was fixed in Firefox 153.0.3.

SeverityMedium
CVSS6.5
Exploit probability—
ProductFirefox for Android
PublishedAug 4, 2026
First seenAug 4, 2026
Weakness typeCWE-200Sensitive information exposure

How to fix

Update
  • Mozilla Firefox for Android153.0.3 or later
  • Mozilla Firefox Focus for Android153.0.3 or later

Affected products

ProductAffected versionsFixed in
Mozilla Firefox for AndroidNo range specified153.0.3
Mozilla Firefox Focus for AndroidNo range specified153.0.3

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