{"id":"CVE-2020-12079","aliases":["EUVD-2020-4395","GHSA-qxvv-6mm7-75fh"],"status":"published","title":"Beaker before 0.8.9 allows a sandbox escape, enabling system access and code execution. This...","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.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02228,"percentile":0.82882,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1321","CWE-20"],"published":"2020-04-23T03:54:07Z","modified":"2026-10-20T10:52:47Z","products":[{"vendor":"beakerbrowser","product":"beaker"}],"references":[{"url":"https://github.com/beakerbrowser/beaker/issues/1519","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/beakerbrowser/beaker/releases/tag/0.8.9","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12079"},{"url":"https://github.com/advisories/GHSA-qxvv-6mm7-75fh"}],"sources":{"cve":[{"id":"CVE-2020-12079","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.","status":"published","published":"2020-04-23T03:54:07Z","modified":"2024-08-04T11:48:58.043Z","updated_at":"2026-11-02T14:35:53.236501Z"}],"euvd":[{"id":"EUVD-2020-4395","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.","status":"published","published":"2020-04-23T03:54:07Z","modified":"2024-08-04T11:48:58Z","updated_at":"2026-11-03T03:07:40.81889Z"}],"ghsa":[{"id":"GHSA-qxvv-6mm7-75fh","title":"Beaker before 0.8.9 allows a sandbox escape, enabling system access and code execution. This...","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.","status":"published","published":"2022-05-24T17:16:17Z","modified":"2023-01-28T05:02:17Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-20","CWE-1321"],"updated_at":"2026-11-02T14:43:45.385Z"}],"nvd":[{"id":"CVE-2020-12079","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.","status":"published","published":"2020-04-23T04:15:13.343Z","modified":"2026-06-17T02:51:23.54Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T14:05:59.718774Z"}],"osv":[{"id":"CVE-2020-12079","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.","status":"published","published":"2020-04-23T04:15:13.343Z","modified":"2026-10-20T10:52:47.037440625Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:14.034736Z"}]}}