CVEvulnerability

CVE-2026-44494

8.7 HIGH Published 2026-06-11 Modified 2026-09-11 Official page ↗
Status
Modified
Published
2026-06-11
Last modified
2026-09-11
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.7 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
8.7 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Weaknesses
CWE-1321, CWE-441, CWE-915

Description

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into a full Man-in-the-Middle (MITM) attack — intercepting, reading, and modifying all HTTP traffic including authentication credentials. The HTTP adapter at lib/adapters/http.js:670 reads config.proxy via standard property access, which traverses the prototype chain. Because proxy is not present in Axios defaults, the merged config object has no own proxy property, making it trivially injectable via prototype pollution. Once injected, setProxy() routes all HTTP requests through the attacker's proxy server. This vulnerability is fixed in 1.16.0.

Affected configurations

• axios axios (>= 1.0.0 < 1.16.0)

Related

Weakness · CWE (3)

  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness
  • CWE-441 Unintended Proxy or Intermediary weakness
  • CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes weakness

References