Information disclosure in Mozilla products - CVE-2026-92031
Published: September 15, 2026
Vulnerability identifier: #VU150059
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-92031
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 disclosure in the Graphics: ImageLib component when processing web content. A remote attacker can process web content with the affected component to disclose sensitive information.
Affected software
Firefox ESR
Mozilla Firefox
Firefox for Android
Mozilla Firefox
Firefox for Android
How to mitigate CVE-2026-92031
Install security update from vendor's website.
Firefox ESR - addressed in versions 140.16.0, 153.3.0
Firefox for Android - update to 156.0
Mozilla Firefox - update to 156.0
Firefox for Android - update to 156.0
Mozilla Firefox - update to 156.0