8.6 HighCWE-918
CVE-2026-44492
Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)
Status
- Not in CISA KEV
- Vendor fix available
Exploit probabilityEPSSchecked 25 Oct
13%probability of exploitation in the next 30 days
Higher than 96% of scored CVEs
SeverityCVSS
8.6High
Description NVD
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.
Coverage 1 article · 1 outlet
- Axios Flaws Let Attackers Hijack Traffic, Steal CredentialsSecurityOnline · first in our coverage