Faker: helpers.fake exploitable into arbritary code execution (CVE-2026-73231) | HOL Guard CVE

High · CVSS 7.8CVE-2026-73231GHSA-QXC2-J82W-R537

Faker: helpers.fake exploitable into arbritary code execution

Answer in brief

CVE-2026-73231 records a High severity (CVSS 7.8) vulnerability in Faker: helpers.fake exploitable into arbritary code execution. The current sources do not mark it as known exploited. The current feed maps faker-js/faker (generic), @faker-js/faker (npm). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 11, 2026Updated Sep 9, 2026Source checked Sep 25, 2026First seen by HOL Aug 11, 2026Material review Sep 9, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps faker-js/faker (generic), @faker-js/faker (npm). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
faker-js/fakergeneric	< 10.5.0	Not reported
@faker-js/fakernpm	<=10.4.0	10.5.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for faker-js/faker, @faker-js/faker.
Review the reported fix. Update @faker-js/faker to 10.5.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 11, 2026

Sources and claim methodology

Upstream source description

Faker generates massive amounts of fake data in the browser and Node.js. Prior to 10.5.0, the faker.helpers.fake method in src/modules/helpers/eval.ts allows attacker-controlled fake templates to access the Function constructor through fakeEval.resolveProperty when a function returns another function, enabling arbitrary JavaScript code execution. This issue is fixed in version 10.5.0.

Quoted source text, attributed separately from HOL analysis.