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CVE-2026-101904GHSA-J8RH-479H-CP32

Axios: Header Injection via Inherited headers After Minimal Interceptor

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.20.0
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

Axios is a promise-based HTTP client for the browser and Node.js. From 1.0.0 until 1.20.0, the dispatchRequest function normalizes inherited Object.prototype.headers from a replacement request configuration. A separate same-process prototype-pollution flaw sets Object.prototype.headers, and trusted request interceptors return a new ordinary configuration without an own headers property. After the interceptor chain, dispatchRequest resolves the inherited headers during normalization. Downstream request processing can observe attacker-controlled headers, including authorization-related values. This issue is fixed in version 1.20.0.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • axios axios

    From 1.0.0 · fixed in 1.20.0

  • axiosnpm

    From 1.0.0 · fixed in 1.20.0

References 4

GitHub · axios/axios