CVE-2026-12303 is a vulnerability in Mozilla Firefox
Published on June 16, 2026
Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component
Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152.
Products Associated with CVE-2026-12303
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Affected Versions
Mozilla Firefox:- Version 152, <= * is unaffected.