CVE WatchJul 16, 2026

CVE-2026-44492

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios does not normalise IPv4-mapped IPv6 addr

CVSS

8.6

High

EPSS

0.9%

p55

KEV

—

Exploit Today

0-100

Published: Jun 11, 2026 · Last modified: Jul 16, 2026 · CWE-918 · CWE-289

EPSS · 30d

0.9%EPSS · 30 days0.9%

2026-06-302026-07-16

Technical description

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios does not normalise IPv4-mapped IPv6 addresses. When NO_PROXY lists an IPv4 address such as 127.0.0.1 or 169.254.169.254, a request URL using the IPv4-mapped IPv6 form (::ffff:7f00:1, ::ffff:a9fe:a9fe) still routes through the configured proxy. Node.js resolves these addresses to the underlying IPv4 host, so the request reaches the internal service via the proxy rather than being blocked. This vulnerability is fixed in 0.32.0 and 1.16.0.

Official references

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