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CVE-2026-74934

Firefox

Description

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.

CVSS 7.5EPSS 0.158%Risk 0.76
View source
Published
2026-08-18 13:17:29
Affected versions
<154
Type
Web application
Last modified
2026-08-24 15:54:34
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H