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Improper Check for Unusual or Exceptional Conditions

CVE-2026-25639

High
7.5/10

Summary

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.13.5, the mergeConfig function in axios crashes with a TypeError when processing configuration objects containing __proto__ as an own property. An attacker can trigger this by providing a malicious configuration object created via JSON.parse(), causing complete denial of service. This vulnerability is fixed in 1.13.5.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-754 - Improper Check for Unusual or Exceptional Conditions

The software does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the software.

References

Advisory Timeline

  • Published