Question 1

What is CVE-2026-74934 — CVE-2026-74934?

Accepted Answer

Site isolation issue in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

Question 2

What is the authoritative source for CVE-2026-74934?

Accepted Answer

CVE-2026-74934 (CVE-2026-74934) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

CVE-2026-74934CVE-2026-74934

Description

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