Question 1

What is CVE-2026-16396 — CVE-2026-16396?

Accepted Answer

Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.

Question 2

What is the authoritative source for CVE-2026-16396?

Accepted Answer

CVE-2026-16396 (CVE-2026-16396) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

CVE-2026-16396CVE-2026-16396

Description