Critical

Sandbox Breakout / Arbitrary Code Execution in safer-eval

  • Disclosed: 11.12.2019
  • Updated: 11.10.2026 10:22

All versions of safer-eval are vulnerable to Sandbox Escape leading to Remote Code Execution. The package fails to restrict access to the main context and is not suited to process arbitrary user input. This may allow attackers to execute arbitrary code in the system.

Recommendation

The package is not meant to receive user input. Consider using an alternative package until a fix is made available.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package safer-eval <= 1.3.6 no fix

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-20, CWE-94
Platform
npm
Package
safer-eval
Disclosed
11.12.2019
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-v63x-xc9j-hhvq - CC BY 4.0

Vulnerability history: safer-eval

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
4
First → latest
10.2019 09.2020
Without a fix
2
Exploited in attacks
0

Severity breakdown

  • Critical 4

Disclosures per year

  1. 2019: 3
  2. 2020: 1
  3. 2021: 0
  4. 2022: 0
  5. 2023: 0
  6. 2024: 0
  7. 2025: 0
  8. 2026: 0
  1. Critical ghsa-876r-hj45-fw7g >= 0.0.0 no fix
  2. Sandbox Breakout / Arbitrary Code Execution in safer-eval this entry
    Critical · 9.8 CVE-2019-10769 <= 1.3.6 no fix
  3. Critical · 9.9 CVE-2019-10759 < 1.3.4 1.3.4
  4. Critical · 9.9 CVE-2019-10760 < 1.3.2 1.3.2

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