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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-74956

Same-origin policy bypass in the DOM: Service Workers component

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

Description

Same-origin policy bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Affected products

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

Mozilla Firefox

  • 153.1 to ≤ 153.*unaffected
  • 154 to ≤ *unaffected

Mozilla Thunderbird

  • 153.1 to ≤ 153.*unaffected
  • 154 to ≤ *unaffected

References