Horizon Alert
Summary of the vulnerability and why it matters
The Axios HTTP client can be vulnerable to prototype pollution through specific configuration properties. This means that if another part of your application corrupts a shared object, Axios might silently use that corrupted data for outgoing requests, potentially leading to unintended behavior.
- Can affect Node.js applications.
- Impact depends on other dependencies.
Attack Path
How an attacker could exploit the issue
An attacker could leverage prototype pollution in a Node.js application using a vulnerable version of Axios to compromise outbound HTTP requests. By first polluting `Object.prototype` through another vulnerable dependency, an attacker could then cause Axios to use these poisoned values when making requests, potentially leading to sensitive data exfiltration or unauthorized actions.
- Requires existing prototype pollution.
- Targets Axios HTTP adapter.
- Affects outbound requests.
Live Threat
Current exploitation, exposure, and threat context
This Axios prototype pollution vulnerability is unlikely to be weaponized due to its nature as an internal dependency rather than a directly exposed service. Exploitation requires an existing vulnerability within a host application to trigger the prototype pollution.
- Not internet-facing.
- Requires prior compromise.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
Prioritize patching or updating the Axios library to version 1.15.2 or later for all Node.js applications. If immediate patching is not feasible, implement input validation for the affected configuration properties to prevent prototype pollution.
- Update Axios to 1.15.2.
- Monitor for anomalous behavior.
- Validate untrusted input.
