AIKIDO-2026-38469
axios is vulnerable to Server-Side Request Forgery (SSRF)
59
Medium Risk
This Affects:
axiosTL;DR
Before adapter normalization, axios accepted malformed http: and https: URLs that omitted //, such as https:internal.example, which could evade naive allowlist or WAF checks and reach unintended hosts. The library silently normalized these inputs instead of rejecting them. The fix throws AxiosError with ERR_INVALID_URL for malformed scheme URLs such as https:example.com or http:/example.com before adapter normalization occurs.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
axios is vulnerable to Server-Side Request Forgery (SSRF) in versions 0.19.1 - 1.17.0.
How to fix this
Upgrade the axios library to the patch version.
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