Vulnerability in Mozilla Firefox
CVE-2026-6763
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
EPSS: 0.001 (19.2th percentile) — read the EPSS interpretation.
Affected products
- Mozilla Firefox — versions 140.10, 150
- Mozilla Thunderbird — versions 140.10, 150