CVE 8.6 HIGH

Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)_CVE-2026-44492

8.6 / 10
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

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.

AI Analysis

Axios does not normalize IPv4-mapped IPv6 addresses, allowing bypass of NO_PROXY restrictions

Basic Information

ID CVE-2026-44492
Source GitHub_M
Published Jun 11, 2026 at 15:29

Affected Product

Vendor axios
Product axios
Version >= 1.0.0, < 1.16.0
Affected Versions axios axios >= 1.0.0, < 1.16.0
axios axios < 0.32.0

CWE Classification

AI Assessment

AI Score 8.6 / 10
AI Severity High
Vendor Axios
Product Axios
Version < 0.32.0, >= 1.0.0, < 1.16.0

References

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