CVE-2026-12303

MediumCVSS 4.3

Published: 16/06/2026(UTC)Updated: 16/06/2026(UTC)Translated: 17/06/2026(UTC)NVD NIST

Summary

CVE-2026-12303 is an information disclosure vulnerability due to incorrect boundary conditions in the Graphics: WebGPU component. It was fixed in Firefox 152 and Thunderbird 152.

Risk Assessment

Information disclosure may lead to leakage of sensitive data, posing a security threat to the organization.

Recommendation

It is recommended to update to Firefox 152 or Thunderbird 152 to mitigate this vulnerability.

Original NVD description (English source)

Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.