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CVE-2026-42264— Axios: Prototype pollution read-side gadgets in HTTP adapter allow credential injection and request hijacking

Quick assessment

Affected
axios axios
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Axios是Axios开源的一款基于Promise（异步编程的一种解决方案）的HTTP客户端。 Axios 1.0.0版本至1.15.2之前版本存在安全漏洞，该漏洞源于HTTP适配器中的五个配置属性通过直接属性访问读取而无hasOwnProperty保护，可作为原型污染小工具利用，当同一进程中其他依赖项污染Object.prototype时，axios在每次出站HTTP请求中静默获取这些污染值。

CVSS 7.4 · High EPSS 0.77% · P55

Affected Version Matrix 1

VendorProduct Version RangeStatus
axios axios >= 1.0.0, < 1.15.2 affected
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I. Basic Information for CVE-2026-42264

Vulnerability Information
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Vulnerability Title
Axios: Prototype pollution read-side gadgets in HTTP adapter allow credential injection and request hijacking
Source: CVE Program / CVE List V5
Vulnerability Description
Axios is a promise based HTTP client for the browser and Node.js. From version 1.0.0 to before version 1.15.2, fFive config properties (auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser) in the HTTP adapter are read via direct property access without hasOwnProperty guards, making them exploitable as prototype pollution gadgets. When Object.prototype is polluted by another dependency in the same process, axios silently picks up these polluted values on every outbound HTTP request. This issue has been patched in version 1.15.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Vulnerability Title
Axios 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Axios是Axios开源的一款基于Promise（异步编程的一种解决方案）的HTTP客户端。 Axios 1.0.0版本至1.15.2之前版本存在安全漏洞，该漏洞源于HTTP适配器中的五个配置属性通过直接属性访问读取而无hasOwnProperty保护，可作为原型污染小工具利用，当同一进程中其他依赖项污染Object.prototype时，axios在每次出站HTTP请求中静默获取这些污染值。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
axios axios >= 1.0.0, < 1.15.2 -

II. Public POCs for CVE-2026-42264

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
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claude_code · 5755 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2026-42264

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Patches & Fixes for CVE-2026-42264 (2)

Vendor Advisories for CVE-2026-42264 (1)

Vendor Pages for CVE-2026-42264 (1)

IV. Related Vulnerabilities

Same product: axios
Same vendor: axios
Same weakness: CWE-1321