CVE-2026-92011

Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component

cve-program · severity unknownCVSS unknownCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-92011

Published

Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-92011

Published

Firefox

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Firefox",
                    "vendor": "Mozilla",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "115.41",
                            "lessThanOrEqual": "115.*",
                            "versionType": "rpm"
                        },
                        {
                            "status": "unaffected",
                            "version": "140.16",
                            "lessThanOrEqual": "140.*",
                            "versionType": "rpm"
                        },
                        {
                            "status": "unaffected",
                            "version": "153.3",
                            "lessThanOrEqual": "153.*",
                            "versionType": "rpm"
                        },
                        {
                            "status": "unaffected",
                            "version": "156",
                            "lessThanOrEqual": "*",
                            "versionType": "rpm"
                        }
                    ]
                }

Thunderbird

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Thunderbird",
                    "vendor": "Mozilla",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "140.16",
                            "lessThanOrEqual": "140.*",
                            "versionType": "rpm"
                        },
                        {
                            "status": "unaffected",
                            "version": "153.3",
                            "lessThanOrEqual": "153.*",
                            "versionType": "rpm"
                        },
                        {
                            "status": "unaffected",
                            "version": "156",
                            "lessThanOrEqual": "*",
                            "versionType": "rpm"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON