CVE
CVE-2026-2776
firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software (important)
DOCUMENTATION: A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software
STATEMENT: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request
CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
10
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
C
H
U
-
C
H
U
-
Related Resources
No items found.
References
https://access.redhat.com/security/cve/CVE-2026-2776
Basic Information
Ecosystem
