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CVE-2026-0878

—
CVSS 3.1
8.0 high
EPSS
<1%p37
Published
()
Modified
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.

Vendors
mozilla
Products
firefox, thunderbird
Weakness
CWE-20, CWE-119
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news

No ingested article mentions this CVE yet.