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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-2764

JIT miscompilation, use-after-free in the JavaScript Engine: JIT component

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Status
Published
Published
Updated
Assigning organization
mozilla

Description

JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Affected products

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

Mozilla Firefox

  • 115.33 to ≤ 115.*unaffected
  • 140.8 to ≤ 140.*unaffected
  • 148 to ≤ *unaffected

Mozilla Thunderbird

  • 140.8 to ≤ 140.*unaffected
  • 148 to ≤ *unaffected

References