High, CVSS 7.8npmPublished
Faker: helpers.fake exploitable into arbritary code execution
CVE-2026-73231 · GHSA-qxc2-j82w-r537
- Affected
- npm @faker-js/faker <= 10.4.0
- Fixed in
- 10.5.0· Vendor fix available
- Issue
- 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 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.
Recommended action: Upgrade to 10.5.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.