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Update dependency @faker-js/faker to v10 [SECURITY] - #300

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renovate/npm-faker-js-faker-vulnerability
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Update dependency @faker-js/faker to v10 [SECURITY]#300
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renovate/npm-faker-js-faker-vulnerability

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@renovate renovate Bot commented Sep 3, 2026

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This PR contains the following updates:

Package Change Age Confidence
@faker-js/faker (source) 9.7.010.5.0 age confidence

Faker: helpers.fake exploitable into arbritary code execution

CVE-2026-73231 / GHSA-qxc2-j82w-r537

More information

Details

Summary

faker.helpers.fake can be tricked into arbritary code execution.

Details

fakeEval.resolveProperty resolves properties on functions itself instead of resolving the nested function first.
This can be addressed by recursively calling resolveProperty instead of accessing the property after one iteration.

PoC

Go to https://fakerjs.dev/
Open Browser console and run

await enableFaker(); // or import faker
faker.rawDefinitions.test = (() => () => {}); // Any function that returns a function
faker.helpers.fake(`{{test.constructor(alert('PowerLevel: Eval'))}}`);
Impact

The Fake method claims:

It is also NOT possible to use any non-faker methods or plain javascript in such patterns.

Which is objectively false, since any global gets fully accessible in the fake string.

Severity

  • CVSS Score: 7.8 / 10 (High)
  • Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


Release Notes

faker-js/faker (@​faker-js/faker)

v10.5.0

Compare Source

New Locales
Features
Bug Fixes

v10.4.0

Compare Source

New Locales
Features
Changed Locales
  • locale: filter and cleanup PersonEntryDefintions data (#​3266) (67defc8)
Bug Fixes
  • locales: correct typos and capitalization in es_MX street names (#​3737) (2b32c28)

v10.3.0

Compare Source

New Locales
Features
Changed Locales
Bug Fixes

v10.2.0

Compare Source

New Locales
Features
Bug Fixes

v10.1.0

Compare Source

New Locales
Bug Fixes

v10.0.0

Compare Source

New Locales
Features
  • locales: add animal vocabulary(bear, bird, cat, rabbit, pet_name) in Korean (#​3535) (0d2143c)
Changed Locales

v9.9.0

Compare Source

New Locales
Features

v9.8.0

Compare Source

New Locales
Changed Locales
Bug Fixes

Configuration

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This PR was generated by Mend Renovate. View the repository job log.

@renovate
renovate Bot force-pushed the renovate/npm-faker-js-faker-vulnerability branch from f40d121 to 1abf8eb Compare September 4, 2026 15:23
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