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CVE-2022-37257

35
FAUCET Score

CVE-2022-37257 is a critical prototype pollution vulnerability affecting stealjs steal version 2.2.4, specifically within the convertLater function in npm-convert.js via the requestedVersion variable. This vulnerability carries a CVSS score of 9.8, indicating a severe risk with network-based exploitation, low attack complexity, and high impacts on confidentiality, integrity, and availability. While there is no evidence of active exploitation, publicly available exploit code, or inclusion in CISA's KEV catalog, the vulnerability has garnered significant community discussion with 10 mentions, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.4CPE matchmatch criteria
cpe:2.3:a:stealjs:steal:2.2.4:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.09%
Probability of exploitation in next 30 days
EPSS Percentile
62.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 47th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

npmGHSA-93q5-3xpc-8vg3critical

steal vulnerable to Prototype Pollution via requestedVersion variable

Sep 16, 2022

References

github.com / stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/ext/npm-convert.js
Third Party Advisory
github.com / stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/ext/npm-convert.js
Third Party Advisory
github.com / stealjs/steal/issues/1526
Issue TrackingThird Party Advisory