Question 1

What is CVE-2026-16381 — CVE-2026-16381?

Accepted Answer

Same-origin policy bypass in the Networking: DNS component. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.

Question 2

What is the authoritative source for CVE-2026-16381?

Accepted Answer

CVE-2026-16381 (CVE-2026-16381) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

CVE-2026-16381CVE-2026-16381

Description