CVE-2026-92013

HighCVSS 8.8/10Last modified Oct 6, 2026

Description

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-120

Affected software

Vendor	Product	Versions
Mozilla	Firefox	—
Mozilla	Thunderbird	—

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2058078Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-90/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-91/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-92/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-93/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-94/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-95/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-96/Vendor Advisory

Timeline

Published: Sep 15, 2026
Last modified: Oct 6, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-920148.8Privilege escalation due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox ESR 115.41, Fir CVE-2026-920158.8Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Fi CVE-2026-920168.8Use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, CVE-2026-920178.8Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140 CVE-2026-920189.6Sandbox escape in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firef CVE-2026-920198.1Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.CVE-2026-92029.8IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to create unlimited user accounts on any Langflow instance; when NEW_CVE-2026-920208.8Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 156,CVE-2026-920218.8Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16 and Thunderbird 140.16.CVE-2026-920228.8Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firef CVE-2026-920238.8Use-after-free in the XML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,CVE-2026-920248.8Use-after-free in the SVG component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,