VULNERABILITY INTELLIGENCE

CVE-2026-0878

CVSS score8 HIGH
EPSS probability0.47%
CISA KEVNot currently listed
Published2026-01-13
Last modified2026-07-15
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

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.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-20

Primary references