CVE-2026-109747
High
Description
Other issue in the Address Bar component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
SeverityHigh
CVSS7.3
Exploit probability—
ProductFirefox
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-451CWE-451
How to fix
Update
- Firefox158 or later
- Thunderbird158 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox | No range specified | 158 |
| Thunderbird | No range specified | 158 |
Check your version
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