Information disclosure in Firefox for Android and Mozilla Firefox - CVE-2026-16373

 

Information disclosure in Firefox for Android and Mozilla Firefox - CVE-2026-16373

Published: July 22, 2026


Vulnerability identifier: #VU139000
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-16373
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to information exposure in the Privacy component when handling privacy-related functionality. A remote attacker can trigger crafted interactions to disclose sensitive information.

This issue is specific to Firefox for Android.


Affected software

Firefox for Android
Mozilla Firefox

How to mitigate CVE-2026-16373

Install security update from vendor's website.

Firefox for Android - update to 153.0
Mozilla Firefox - update to 153.0

External References

Related Security Bulletins