CVE-2022-37258

Name: CVE-2022-37258
Creator: NVD / NIST
Published: 2022-09-16T22:15:12.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.18%

Last modified Jun 17, 2026

CVE-2022-37258 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Prototype pollution vulnerability in function convertLater in npm-convert.js in stealjs steal 2.2.4 via the packageName variable in npm-convert.js.. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

Prototype pollution vulnerability in function convertLater in npm-convert.js in stealjs steal 2.2.4 via the packageName variable in npm-convert.js.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.18%

63.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1321

Affected Software

Vendor	Product	Versions
Stealjs	Steal	2.2.4

References

https://github.com/stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/ext/npm-convert.js#L362Exploit, Third Party Advisory
https://github.com/stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/ext/npm-convert.js#L369Exploit, Third Party Advisory
https://github.com/stealjs/steal/issues/1527Issue Tracking, Third Party Advisory
https://github.com/stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/ext/npm-convert.js#L362Exploit, Third Party Advisory
https://github.com/stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/ext/npm-convert.js#L369Exploit, Third Party Advisory
https://github.com/stealjs/steal/issues/1527Issue Tracking, Third Party Advisory

Timeline

Published: Sep 16, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-37258?

Prototype pollution vulnerability in function convertLater in npm-convert.js in stealjs steal 2.2.4 via the packageName variable in npm-convert.js.

How severe is CVE-2022-37258?

CVE-2022-37258 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.

How do I fix CVE-2022-37258?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-37258?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST