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CVE PROGRAM SOURCE RECORD7.3 High

CVE-2026-8090

Use-after-free in the DOM: Networking component

Description

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

Affected products

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

Mozilla Firefox

  • 115.35.2 to ≤ 115.*unaffected
  • 140.10.2 to ≤ 140.*unaffected
  • 150.0.2 to ≤ *unaffected

Mozilla Thunderbird

  • 140.10.2 to ≤ 140.*unaffected
  • 150.0.2 to ≤ *unaffected

References