CVE-2026-4686

HighCVSS 7.5/10Last modified Jul 15, 2026

Description

Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-754CWE-787

Affected software

VendorProductVersions
MozillaFirefox—
MozillaThunderbird—
Red HatRed Hat Enterprise Linux 10—
Red HatRed Hat Enterprise Linux 10—
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support—
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support—
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support—
Red HatRed Hat Enterprise Linux 8—
Red HatRed Hat Enterprise Linux 8—
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support—
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support—
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support—
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support—
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On—
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On—
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support—
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support—
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Service—
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Service—
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service—
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service—
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 9—
Red HatRed Hat Enterprise Linux 9—
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 9.4 Extended Update Support—
Red HatRed Hat Enterprise Linux 9.4 Extended Update Support—
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support—
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support—
Red HatRed Hat Enterprise Linux 10—
Red HatRed Hat Enterprise Linux 10—
Red HatRed Hat Enterprise Linux 6—
Red HatRed Hat Enterprise Linux 6—
Red HatRed Hat Enterprise Linux 7—

References

Timeline

Published
Mar 24, 2026
Last modified
Jul 15, 2026
NVD status
Modified

Related CVEs from 2026

CVE-2026-468609.8Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 9.0.0-9.7.CVE-2026-468619.6Vulnerability in the MySQL NDB Cluster product of Oracle MySQL (component: Cluster: NDB Operator). Supported versions that are affected areCVE-2026-468627.5Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 8.4.0-8.4.CVE-2026-468637.5Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling). Supported versions that CVE-2026-468648.8Vulnerability in the Oracle Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Agent Next Gen). Supported veCVE-2026-468658.2Vulnerability in the Oracle Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Extensibility Framework). SupCVE-2026-468668.2Vulnerability in the Oracle Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Agent Next Gen). Supported veCVE-2026-468677.2Vulnerability in the Oracle Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Extensibility Framework). SupCVE-2026-468687.2Vulnerability in the Oracle Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Extensibility Framework). SupCVE-2026-468696.5Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell: Dump and Load). Supported versions that are affected are 8.4.0-CVE-2026-46878.6Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115CVE-2026-468708.5Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell for VS Code). The supported version that is affected is 2026.2.
CVE-2026-4686: High severity, CVSS 7.5 | Vulnix