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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-16381

Same-origin policy bypass in the Networking: DNS component

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
mozilla

Description

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

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Firefox

  • 140.13 to ≤ 140.*unaffected
  • 153 to ≤ *unaffected

Mozilla Thunderbird

  • 140.13 to ≤ 140.*unaffected
  • 153 to ≤ *unaffected

References