Security readout for executives and security teams
Plain-English summary
CVE-2018-3749 affects the npm deap module before version 1.0.1. If an attacker can influence data passed into its utilities function, they may change properties shared by all JavaScript objects. Business impact depends on whether vulnerable code processes untrusted input.
Executive priority
Prioritize remediation for internet-facing or API-driven Node.js services that process user-controlled objects. Treat internal-only uses as lower urgency unless untrusted data paths exist.
Technical view
This is a prototype pollution issue in deap. The vulnerable utilities function can be tricked into modifying Object.prototype when attacker-controlled structure is processed. That can introduce or alter properties visible across objects. The provided sources do not include CVSS, CWE, confirmed exploit activity, or broader affected-product metadata.
Likely exposure
Exposure is likely in Node.js applications or transitive dependencies using deap versions earlier than 1.0.1, especially where external input reaches the affected utilities function.
Exploitation context
The provided bundle does not show CISA KEV listing or confirmed active exploitation. A public HackerOne report is referenced, but exploitability depends on application-specific data flow into deap.
Researcher notes
Key missing evidence: CVSS, CWE mapping, exploit-in-the-wild confirmation, and detailed affected package metadata beyond the vulnerable version range. Validate actual risk through dependency and data-flow review.
Mitigation direction
- Upgrade deap to version 1.0.1 or later where present.
- Review package locks and SBOMs for transitive deap usage.
- Restrict untrusted structured input from reaching vulnerable merge or utility paths.
- Check vendor or package maintainer guidance for any additional recommendations.
Validation and detection
- Identify all applications and builds containing deap below 1.0.1.
- Trace whether request, API, or file input reaches deap utilities.
- Review tests for prototype pollution regressions around object merging.
- Confirm updated dependency versions in lockfiles and deployed artifacts.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2018-3749 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://hackerone.com/reports/310446CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.