VDB

DEBIAN-CVE-2026-2761

DEBIAN-CVE-2026-2761 PUBLISHED CVSS 10 CRITICAL

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.

Risk Scores

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

Affected Products

VendorProductVersions
Debian:11firefox-esr*, 91.9.1, 91.9.1
Debian:13thunderbird1:140.4.0esr-1~deb13u1, 140.5.0, 140.5.0
Debian:14firefox-esr140.4.0esr-1~deb13u1, 140.4.0esr-1~deb12u1, 140.4.0esr-1~deb11u1
Debian:11thunderbird*, *, *
Debian:14thunderbird140.0.1, 140.1.0, 140.1.1
Debian:13firefox-esr140.3.1esr-1~deb13u1, 140.3.1esr-1~deb12u1, 140.3.1esr-1~deb11u1
Debian:12firefox-esr140.8.0, 0, 102.11.0esr-1
Debian:12thunderbird1:115.3.1-1, 1:115.3.0-1~deb12u1, 1:115.3.0-1

Timeline

  • Feb 24, 2026 CVE Published
  • Apr 28, 2026 CVE Updated
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