Beaker before 0.8.9 allows a sandbox escape, enabling system access and code execution.
Priority MEDIUM 47CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.02228 82nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:beakerbrowser:beaker:*:*:*:*:*:*:*:* | before 0.8.9 | Vulnerable | Beakerbrowser |
- cpe:2.3:a:beakerbrowser:beaker:*:*:*:*:*:*:*:* Versions before 0.8.9 Vulnerable ·Beakerbrowser
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12079
- 2026-10-03 Alias added: GHSA-qxvv-6mm7-75fh
References
More Beakerbrowser Beaker vulnerabilities
- TI-2013-06141 The Beaker library through 1.11.0 for Python is affected by deserialization of untrusted… CVSS 3.1MEDIUM 6.8
Sources
- CVE-2020-12079 · CVE Program
- CVE-2020-12079 · NVD
- FIRST EPSS
- GHSA-qxvv-6mm7-75fh · GitHub Advisory Database · CC BY 4.0
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