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CVE PROGRAM SOURCE RECORD5.4 Medium

CVE-2026-12299

JIT miscompilation in the DOM: Core & HTML component

Description

JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

Affected products

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

Mozilla Firefox

  • 115.37 to ≤ 115.*unaffected
  • 140.12 to ≤ 140.*unaffected
  • 152 to ≤ *unaffected

Mozilla Thunderbird

  • 140.12 to ≤ 140.*unaffected
  • 152 to ≤ *unaffected

References