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CVE-2026-40175— Axios has Unrestricted Cloud Metadata Exfiltration via Header Injection Chain

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 1.15.0之前版本存在代码问题漏洞，该漏洞源于存在特定的Gadget攻击链，可能将任何第三方依赖中的原型污染升级为远程代码执行或完全云破解。

CVSS 4.8 · Medium EPSS 1.95% · P80

Affected Version Matrix 2

VendorProduct Version RangeStatus
axios axios >= 1.0.0, < 1.15.0 affected
< 0.31.0 affected
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I. Basic Information for CVE-2026-40175

Vulnerability Information
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Vulnerability Title
Axios has Unrestricted Cloud Metadata Exfiltration via Header Injection Chain
Source: CVE Program / CVE List V5
Vulnerability Description
Axios is a promise based HTTP client for the browser and Node.js. Versions prior to 1.15.0 and 0.3.1 are vulnerable to a specific gadget-style attack chain in which prototype pollution in a third-party dependency may be leveraged to inject unsanitized header values into outbound requests. This vulnerability is fixed in 1.15.0 and 0.3.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
HTTP头部中CRLF序列转义处理不恰当(HTTP响应分割)
Source: CVE Program / CVE List V5
Vulnerability Title
Axios 代码问题漏洞
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 1.15.0之前版本存在代码问题漏洞，该漏洞源于存在特定的Gadget攻击链，可能将任何第三方依赖中的原型污染升级为远程代码执行或完全云破解。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
axios axios >= 1.0.0, < 1.15.0 -

II. Public POCs for CVE-2026-40175

# 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 · 6020 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2026-40175

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Patches & Fixes for CVE-2026-40175 (4)

Vendor Advisories for CVE-2026-40175 (1)

IV. Related Vulnerabilities

Same product: axios
Same vendor: axios
Same weakness: CWE-113