CVE-2025-31486

Summary

Vite is a frontend tooling framework for javascript. The contents of arbitrary files can be returned to the browser. By adding ?.svg with ?.wasm?init or with sec-fetch-dest: script header, the server.fs.deny restriction was able to bypass. This bypass is only possible if the file is smaller than build.assetsInlineLimit (default: 4kB) and when using Vite 6.0+. Only apps explicitly exposing the Vite dev server to the network (using –host or server.host config option) are affected. This vulnerability is fixed in 4.5.12, 5.4.17, 6.0.14, 6.1.4, and 6.2.5.

Affected Software

VendorProductVersion RangeStatus
vitejsvite< 4.5.12affected
vitejsvite>=5.0.0, < 5.4.17affected
vitejsvite>=6.0.0, < 6.0.14affected
vitejsvite>=6.1.0, < 6.1.4affected
vitejsvite>=6.2.0, < 6.2.5affected

Weaknesses

  • CWE-200: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-284: CWE-284: Improper Access Control

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

Additional References

References