CVE-2020-12079

Published: Apr 23, 2020Modified: Jun 17, 2026

10.0

Vector

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

Exploitability: 3.9 / Impact: 6.0

Source: NVD

Description

Beaker before 0.8.9 allows a sandbox escape, enabling system access and code execution. This occurs because Electron context isolation is not used, and therefore an attacker can conduct a prototype-pollution attack against the Electron internal messaging API.

Affected (1)

Products: Beakerbrowser: Beaker

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Beakerbrowser Beaker	Before 0.8.9

Related CWEs

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

References (4)

https://github.com/beakerbrowser/beaker/issues/1519

Source: cve@mitre.org

Third Party Advisory

https://github.com/beakerbrowser/beaker/releases/tag/0.8.9

Source: cve@mitre.org

Release NotesThird Party Advisory

https://github.com/beakerbrowser/beaker/issues/1519

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://github.com/beakerbrowser/beaker/releases/tag/0.8.9

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesThird Party Advisory

Timeline

No history available yet.