CVE-2026-44492highCWE-289CWE-918

CVE-2026-44492: high-severity vulnerability in axios

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

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26Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.6epss 12%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Affected products
axios · axios
Related CVEs — axios

In the same product, most dangerous first.

CVE-2019-10742—CVE-2019-10742EPSS 6.1%CVE-2026-44496HIGHAxios: Regular Expression Denial of Service (ReDoS) via Cookie Name InjectionEPSS 5.4%CVE-2026-25639HIGHAxios affected by Denial of Service via __proto__ Key in mergeConfigEPSS 2.8%CVE-2026-40175MEDIUMAxios has Unrestricted Cloud Metadata Exfiltration via Header Injection ChainEPSS 1.9%CVE-2025-62718MEDIUMAxios has a NO_PROXY Hostname Normalization Bypass that Leads to SSRFEPSS 1.2%CVE-2025-58754HIGHAxios is vulnerable to DoS attack through lack of data size checkEPSS 1.2%