CVE-2026-16396
Critical · CVSS 9.8- CVSS
- 9.8
- nvd
- EPSS
- 0.33%
- 26th pct
- KEV
- No
- Class
- other
- CWE-269
Description
Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
References
Status: profiled · ingested 2026-07-24T18:00:18.000Z