cbcvebase.
CVE-2026-6749
published 2026-04-21

CVE-2026-6749: Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35…

high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Affected

12 ranges
VendorProductVersion rangeFixed in
github.comsteveiliop56_tinyauth>= 0 < 1.0.1-20260311144920-9eb2d33064b71.0.1-20260311144920-9eb2d33064b7
mozillafirefox< Firefox 150Firefox 150
mozillafirefox< 115.35.0115.35.0
mozillafirefox< 150.0150.0
mozillafirefox
mozillafirefox>= 140.0 < 140.10.0140.10.0
mozillafirefox_esr< Firefox ESR 115.35Firefox ESR 115.35
mozillafirefox_esr< Firefox ESR 140.10Firefox ESR 140.10
mozillathunderbird< Thunderbird 140.10Thunderbird 140.10
mozillathunderbird< Thunderbird 150Thunderbird 150
mozillathunderbird< 140.10.0140.10.0
rhel10firefox-flatpak