CVE-2025-62718
CriticalCVSS 9.9Exploitation Probability (EPSS)
Elevated risk65th percentile - higher than 65% of all known CVEs
Summary
A vulnerability in Axios prior to versions 1.15.0 and 0.31.0 incorrectly handles hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy.
Risk Assessment
Attackers can exploit this flaw to perform SSRF (Server-Side Request Forgery) attacks and bypass proxy protections, gaining access to sensitive internal or loopback services that should be protected by NO_PROXY rules.
Recommendation
Immediately update Axios to version 1.15.0 or 0.31.0, which fix this vulnerability. If an update is not possible, manually validate and normalize hostnames before applying NO_PROXY rules.
Original NVD description (English source)
Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy. This goes against what developers expect and lets attackers force requests through a proxy, even if NO_PROXY is set up to protect loopback or internal services. This issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections. This vulnerability is fixed in 1.15.0 and 0.31.0.