REDHAT-BUG-2461606: Medium severity npm/axios vulnerability

Published Apr 24, 2026
·
Updated

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, a prototype pollution gadget exists in the Axios HTTP adapter (lib/adapters/http.js) that allows an attacker to inject arbitrary HTTP headers into outgoing requests. The vulnerability exploits duck-type checking of the data payload, where if Object.prototype is polluted with getHeaders, append, pipe, on, once, and Symbol.toStringTag, Axios misidentifies any plain object payload as a FormData instance and calls the attacker-controlled getHeaders() function, merging the returned headers into the outgoing request. The vulnerable code resides exclusively in lib/adapters/http.js. The prototype pollution source does not need to originate from Axios itself — any prototype pollution primitive in any dependency in the application's dependency tree is sufficient to trigger this gadget. This vulnerability is fixed in 1.15.1 and 0.31.1.

Affected Software

1 affected component
npm/axios<1.15.1, <0.31.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade axios to a version that resolves this vulnerability.

    Fixed in 1.15.1
  2. Upgrade

    Upgrade axios to a version that resolves this vulnerability.

    Fixed in 0.31.1

Event History

Apr 24, 2026
Data Sourced
via Red Hat·06:01 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2461606?

The severity of REDHAT-BUG-2461606 is medium with a score of 4.

2

How do I fix REDHAT-BUG-2461606?

To fix REDHAT-BUG-2461606, you should upgrade Axios to version 1.15.1 or 0.31.1 or later.

3

What is the impact of REDHAT-BUG-2461606?

The impact of REDHAT-BUG-2461606 allows an attacker to inject arbitrary HTTP headers into outgoing requests.

4

What versions of Axios are affected by REDHAT-BUG-2461606?

Versions of Axios prior to 1.15.1 and 0.31.1 are affected by REDHAT-BUG-2461606.

5

What is Axios in relation to REDHAT-BUG-2461606?

Axios is a promise based HTTP client for the browser and Node.js, which has a vulnerability described in REDHAT-BUG-2461606 that affects its HTTP adapter.

Contact

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