Axios Node.js HTTP Adapter Proxy-Auth Header Leak 0.31.0/1.15.0
CVE-2026-44486 Published on June 11, 2026
Axios: Proxy-Authorization header leaks to redirect target when proxy is re-evaluated to direct connection
Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios Node.js HTTP adapter can leak proxy credentials to a redirect target in affected versions. When a request is sent through an authenticated proxy, Axios may add a Proxy-Authorization header. If Axios then follows a redirect and the redirected request is no longer sent through that proxy, the stale Proxy-Authorization header can remain on the redirected request and be sent to the redirect target. This affects Node.js's use of Axios with automatic redirects enabled and an authenticated proxy configuration. Browser adapters are not affected. This vulnerability is fixed in 0.32.0 and 1.16.0.
Vulnerability Analysis
CVE-2026-44486 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Types
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2026-44486 has been classified to as an Information Disclosure vulnerability or weakness.
Insertion of Sensitive Information Into Sent Data
The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor. Sensitive information could include data that is sensitive in and of itself (such as credentials or private messages), or otherwise useful in the further exploitation of the system (such as internal file system structure).
Products Associated with CVE-2026-44486
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Affected Versions
axios:- Version >= 1.0.0, < 1.16.0 is affected.
- Version < 0.32.0 is affected.
- Version 1783351002 and below * is unaffected.
- Version 1782157085 and below * is unaffected.
- Version 1783348181 and below * is unaffected.
- Version 1783350952 and below * is unaffected.
- Version 1782157514 and below * is unaffected.
- Version 1783451729 and below * is unaffected.
- Version 1779293013 and below * is unaffected.
- Version 1779371594 and below * is unaffected.
- Version 1783448184 and below * is unaffected.
- Version 1781187342 and below * is unaffected.
- Version 1782761244 and below * is unaffected.
- Version 1782166952 and below * is unaffected.
- Version 1782911957 and below * is unaffected.
- Version 1782127091 and below * is unaffected.
- Version 1782244020 and below * is unaffected.
- Version 1782880472 and below * is unaffected.
- Version 1781695012 and below * is unaffected.
- Version 1781731914 and below * is unaffected.
- Version 1782498475 and below * is unaffected.
- Version 1782498792 and below * is unaffected.
- Version 1781937133 and below * is unaffected.
- Version 1782287580 and below * is unaffected.
- Version 1782201894 and below * is unaffected.
- Version 1782201833 and below * is unaffected.
- Version 1782201696 and below * is unaffected.
- Version 1782201537 and below * is unaffected.
- Version 1782201851 and below * is unaffected.
- Version 1782201812 and below * is unaffected.
- Version 1782231869 and below * is unaffected.
- Version 1782201466 and below * is unaffected.
- Version 1783750447 and below * is unaffected.
- Version 1783955846 and below * is unaffected.
- Version 1784125838 and below * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.