VDB
DEBIAN-CVE-2026-2760
DEBIAN-CVE-2026-2760
PUBLISHED
CVSS 10 CRITICAL
Sandbox escape due to incorrect boundary conditions 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.
Risk Scores
CVSS v3.1
10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | firefox-esr | 115.11.0, 128.9.0, 128.8.0 |
| Debian:13 | thunderbird | 140.0.1, 138.0-1, 137.0-1 |
| Debian:12 | thunderbird | 0, 1:102.11.0-1, 1:102.12.0-1 |
| Debian:11 | firefox-esr | 128.3.0, 91.7.0esr-1~deb10u1, 91.7.0esr-1~deb9u1 |
| Debian:13 | firefox-esr | 140.4.0esr-1~deb13u1, 140.5.0esr-1~deb11u1, 140.5.0esr-1~deb12u1 |
| Debian:14 | thunderbird | 0, 1:128.14.0esr-1~deb11u1, 1:128.14.0esr-1~deb12u1 |
| Debian:11 | thunderbird | 1:102.0.1-1, 115.3.1-1, 115.3.1-1 |
| Debian:14 | firefox-esr | 128.13.0esr-1, 128.14.0esr-1, 128.14.0esr-1~deb11u1 |
Timeline
- Feb 24, 2026 CVE Published
- Apr 28, 2026 CVE Updated