CVE-2026-44489

A flaw was found in Axios, a promise-based HTTP client. A remote attacker could exploit a prototype pollution vulnerability, which occurs when nested objects are created without proper checks, allowing an attacker to inject malicious properties into Object.prototype. This vulnerability specifically affects the setProxy() function, which, when processing proxy credentials, fails to validate if properties like username or password belong to the object itself. Consequently, attacker-controlled credentials can be injected into Proxy-Authorization headers, potentially leading to information disclosure in proxied HTTP requests.

This is a Low impact vulnerability in the Axios HTTP client library. A remote attacker could exploit a prototype pollution flaw to inject arbitrary credentials into the Proxy-Authorization header of proxied HTTP requests. This issue is limited to applications explicitly configured to use a proxy and requires a separate prototype pollution vulnerability within the application's dependency tree, reducing its overall exploitability and impact on confidentiality.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.