CVE WatchSep 28, 2026

CVE-2026-101908

Axios is a promise-based HTTP client for the browser and Node.js. From 1.7.0 until 1.20.0, the fetch adapter constructs a Request with sanit

CVSS

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No CVSS

EPSS

0.5%

p40

KEV

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Exploit Today

0-100

Published: Sep 28, 2026 · Last modified: Sep 28, 2026 · CWE-1321

EPSS · 30d

0.4%EPSS · 30 days0.5%

2026-09-292026-10-25

Technical description

Axios is a promise-based HTTP client for the browser and Node.js. From 1.7.0 until 1.20.0, the fetch adapter constructs a Request with sanitized resolvedOptions but then calls fetch with the original fetchOptions. A separate same-process prototype-pollution flaw populates Object.prototype.headers so fetchOptions.headers resolves through inheritance. The inherited fetchOptions.headers value overrides the sanitized Request headers through the second argument to fetch after Request construction. Attacker-controlled request headers can alter authorization, caching, metadata-service access, or application-specific behavior. This issue is fixed in version 1.20.0.

Official references

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