What is CVE-2026-74934?
A site isolation issue was discovered in the Graphics: CanvasWebGL component of Firefox and Thunderbird. This flaw could allow a website to access information from other sites without authorization. The vulnerability has been fixed in the specified software versions.
Azərbaycanca: Firefox və Thunderbird brauzerlərində Graphics: CanvasWebGL komponentində sayt izolyasiyası problemi aşkar edilib. Bu boşluq veb saytın digər saytların məlumatlarına icazəsiz giriş əldə etməsinə səbəb ola bilərdi. Qeyd olunan proqram versiyalarına yeniləmə etməklə zəiflik aradan qaldırılıb.
Related CVEs
link basis: shared vendors: Firefox, Thunderbird
FAQ2
Which component in Firefox and Thunderbird caused the site isolation issue?
The site isolation issue was discovered in the Graphics: CanvasWebGL component.
What risk could a website exploiting CVE-2026-74934 pose?
This flaw could allow a website to access information from other sites without authorization.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.