CVEvulnerability
CVE-2026-92018
9.6 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-15
- Last modified
- 2026-10-06
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.6 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-693
Description
Sandbox escape in the DOM: Core & HTML 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.
Affected configurations
• mozilla firefox (< 115.41.0)
• mozilla firefox (>= 116.0 < 140.16.0)
• mozilla firefox (>= 141.0 < 153.3.0)
• mozilla firefox (>= 154.0.0 < 156.0.0)
• mozilla thunderbird (< 140.16.0)
• mozilla thunderbird (>= 141.0 < 153.3.0)
• mozilla thunderbird (>= 154.0 < 156.0)
Related
Weakness · CWE (1)
- CWE-693 Protection Mechanism Failure weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2064287 Permissions 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