cvedb.io
CVE-2026-0878
HIGH · CVSS 8
EPSS exploitation probability: 0%
Published 2026-01-13T14:16:38.367 · Last modified 2026-06-30T03:17:04.453

Summary

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

mozilla — firefox

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.