CVEvulnerability
CVE-2026-2761
10.0 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2026-02-24
- Last modified
- 2026-07-15
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-693
Description
Sandbox escape in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Affected configurations
• mozilla firefox (< 115.33.0)
• mozilla firefox (< 148.0)
• mozilla firefox (>= 128.0 < 140.8.0)
• mozilla thunderbird (< 140.8.0)
• mozilla thunderbird (< 148.0)
Related
Weakness · CWE (1)
- CWE-693 Protection Mechanism Failure weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2011063 Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-13/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-14/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-15/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-16/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-17/ Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:3338 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3339 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3361 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3491 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3492 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3493 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3494 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3495 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3496 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3497 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3515 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3516 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3517 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3976 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3978 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3979 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3980 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3981 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3982 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3983 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3984 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:4022 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:4152 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:4260 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:4432 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-2761 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2442309 bugzilla.redhat.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2761.json security.access.redhat.com