Axios up to 0.31.x/1.15.x Header Proxy-Authorization insertion of sensitive information into sent data

Summaryinfo

A vulnerability was found in Axios up to 0.31.x/1.15.x. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component Header Handler. The manipulation of the argument Proxy-Authorization leads to insertion of sensitive information into sent data. This vulnerability is listed as CVE-2026-44487. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Axios up to 0.31.x/1.15.x. It has been rated as problematic. This issue affects an unknown code block of the component Header Handler. The manipulation of the argument Proxy-Authorization with an unknown input leads to a insertion of sensitive information into sent data vulnerability. Using CWE to declare the problem leads to CWE-201. The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor. Impacted is confidentiality. The summary by CVE is:

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios’s Node.js HTTP adapter may forward a Proxy-Authorization header to a redirected origin during specific proxy-to-direct redirect flows. This affects Node.js usage, where an initial HTTP request is sent through an authenticated HTTP proxy, redirects are followed, and the redirected URL is no longer proxied. Under affected redirect shapes, the final origin can receive the proxy credential that was intended only for the outbound proxy. This vulnerability is fixed in 0.32.0 and 1.16.0.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-44487 since 05/06/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 0.32.0 or 1.16.0 eliminates this vulnerability.

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Productinfo

Name

• Axios

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31
• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15

Website

• Product: https://github.com/axios/axios/

CPE 2.3info

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CPE 2.2info

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