CVE-2026-42038
Last modified
CVE-2026-42038 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Axios | Axios | < 0.31.1 |
| Axios | Axios | >= 1.0.0, < 1.15.1 |
References
- https://github.com/axios/axios/security/advisories/GHSA-m7pr-hjqh-92cmExploit, Mitigation, Vendor Advisory
- https://github.com/axios/axios/security/advisories/GHSA-m7pr-hjqh-92cmExploit, Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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