CVE-2022-37266
steal vulnerable to Prototype Pollution via key variable in babel.js
Prototype pollution vulnerability in function extend in babel.js in stealjs steal 2.2.4 via the key variable in babel.js.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Prototype pollution vulnerability in function extend in babel.js in stealjs steal 2.2.4 via the key variable in babel.js.
- Record
CVE-2022-37266- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
CVE List No score
Prototype pollution vulnerability in function extend in babel.js in stealjs steal 2.2.4 via the key variable in babel.js.
- Record
CVE-2022-37266- Updated
- 2026-11-02
EUVDEUVD-2022-6952 No score
Prototype pollution vulnerability in function extend in babel.js in stealjs steal 2.2.4 via the key variable in babel.js.
- Record
EUVD-2022-6952- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vwhq-pm3r-fjm9
steal vulnerable to Prototype Pollution via key variable in babel.js
Prototype pollution vulnerability in function extend in babel.js in stealjs steal via the key variable in babel.js.
- Record
GHSA-vwhq-pm3r-fjm9- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVGHSA-vwhq-pm3r-fjm9
steal vulnerable to Prototype Pollution via key variable in babel.js
Prototype pollution vulnerability in function extend in babel.js in stealjs steal via the key variable in babel.js.
- Record
GHSA-vwhq-pm3r-fjm9- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSV No score
Prototype pollution vulnerability in function extend in babel.js in stealjs steal 2.2.4 via the key variable in babel.js.
- Record
CVE-2022-37266- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
stealnpm |
through 2.3.0 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-37266 is a critical vulnerability (CVSS 9.8) in Stealjs Steal, published September 15, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.37%, the 72nd percentile. No source names a fixed version.
References
github.com/stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/ext/babel.js
nvd.nist.gov/vuln/detail/CVE-2022-37266