CVE-2026-117990 | Mozilla Firefox up to 153.5/158 WebRender sandbox

October 27, 2026 Yanac

A vulnerability described as critical has been identified in Mozilla Firefox up to 153.5/158. Affected by this issue is some unknown functionality of the component WebRender. The manipulation results in sandbox issue.

This vulnerability is reported as CVE-2026-117990. The attack can be launched remotely. No exploit exists.

Upgrading the affected component is recommended.VulDB Recent EntriesRead More