Information disclosure in Mozilla products - CVE-2026-2783
Published: February 24, 2026
Vulnerability identifier: #VU123209
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-2783
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Firefox ESR
Firefox for Android
Mozilla Firefox
Firefox ESR
Firefox for Android
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to JIT miscompilation in the JavaScript Engine: JIT component. A remote attacker can gain unauthorized access to sensitive information.
How to mitigate CVE-2026-2783
Install updates from vendor's website.