Skip to content
CVE PROGRAM SOURCE RECORD8.0 High

CVE-2026-0878

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component

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

Description

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Affected products

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

Mozilla Firefox

  • 140.7 to ≤ 140.*unaffected
  • 147 to ≤ *unaffected

Mozilla Thunderbird

  • 140.7 to ≤ 140.*unaffected
  • 147 to ≤ *unaffected

References