CVE-2025-62718 Axios has a NO_PROXY Hostname Normalization Bypass that Leads to SSRF
Attackers can bypass NO_PROXY rules via hostname normalization flaws to access internal services through a proxy, requiring an upgrade to Axios.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-62718?
CVE-2025-62718 is a medium-severity server-side request forgery vulnerability in axios, published on 9 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2025-62718?
4 open source packages ship an affected version, including axios. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
axios npm | All versions | 0.31.0 |
axios npm | All versions | 0.31.0 |
axios npm | From 1.0.0 | 1.15.0 |
axios npm | From 1.0.0 | 1.15.0 |
Products include Axios Axios.
How do I fix CVE-2025-62718?
Upgrade axios to a fixed version for your release line: 0.31.0 or 1.15.0.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2025-62718 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-62718 exists.
Other vulnerabilities in axios
- CVE-2026-44494 Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
- CVE-2026-44492 axios's shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)
- CVE-2026-67320 axios before 0.33.0 Prototype Pollution via Node HTTP adapter
- CVE-2026-44487 Axios: Proxy-Authorization Credential Leak to Origin Server Across HTTP-to-HTTPS Redirect in Axios Node.js HTTP Adapter
- CVE-2025-27152 Possible SSRF and Credential Leakage via Absolute URL in axios Requests
Sources
Also known as CLEANSTART-2026-FC62060, CLEANSTART-2026-PQ32851, DEBIAN-CVE-2025-62718, ECHO-eb65-3dc1-4753, GHSA-3p68-rc4w-qgx5, MINI-2334-99r5-4q39 and 20 more.