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Medium severity6.8NVD Advisory· Published Apr 24, 2026· Updated Apr 27, 2026

CVE-2026-42038

CVE-2026-42038

Description

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, he fix for no_proxy hostname normalization bypass is incomplete. When no_proxy=localhost is set, requests to 127.0.0.1 and [::1] still route through the proxy instead of bypassing it. The shouldBypassProxy() function does pure string matching — it does not resolve IP aliases or loopback equivalents. This vulnerability is fixed in 1.15.1 and 0.31.1.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
axiosnpm
>= 1.0.0, < 1.15.11.15.1
axiosnpm
< 0.31.10.31.1

Affected products

50

Patches

Vulnerability mechanics

References

3

News mentions

0

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