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CVE-2026-101902— Axios: Prototype-Pollution Gadget in the Default Instance Allows Inherited Object.prototype.method to Override HTTP Method

Quick assessment

Affected
axios axios
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Axios 是一个基于 Promise 的 HTTP 客户端，适用于浏览器和 Node.js 环境。在版本 0.27.2 至 0.34.0 以及 1.2.0 至 1.20.0 之间，Axios 的默认实例在处理未显式指定 HTTP 方法（method）的请求时，可能会从 Object.prototype 中继承一个 method 属性值。如果同一进程中存在其他漏洞导致对 Object.prototype.method 的污染，那么诸如 或 这样的调用可能会发送一个具有状态变更能力的 HTTP 方法（如 POST、P

CVSS 6.9 · Medium

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 2

VendorProduct Version RangeStatus
axios axios >= 1.0.0, < 1.20.0 affected
>= 0.27.2, < 0.34.0 affected
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I. Basic Information for CVE-2026-101902

Vulnerability Information
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Vulnerability Title
Axios: Prototype-Pollution Gadget in the Default Instance Allows Inherited Object.prototype.method to Override HTTP Method
Source: CVE Program / CVE List V5
Vulnerability Description
Axios is a promise-based HTTP client for the browser and Node.js. From 0.27.2 until 0.34.0 and 1.20.0, Axios default-instance requests that omit an explicit method can read an inherited method value from Object.prototype. If another vulnerability in the same process pollutes Object.prototype.method, calls such as axios.request({ url }) and axios({ url }) can send a state-changing HTTP method instead of the expected default GET. Axios does not create the prototype pollution source. This is a read-side gadget in axios request dispatch. This issue is fixed in version 0.34.0 and 1.20.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
axios axios >= 1.0.0, < 1.20.0 -

II. Public POCs for CVE-2026-101902

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III. Intelligence Information for CVE-2026-101902

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Other References for CVE-2026-101902 (5)

Same Patch Batch · axios · 2026-09-28 · 11 CVEs total

CVE-2026-101909 8.3 HIGH Axios: Prototype Pollution Gadget in axios toFormData Options
CVE-2026-101901 8.2 HIGH Axios: Denial of Service via Unhandled 'error' Event in HTTP/2 ClientHttp2Session Initial
CVE-2026-101906 8.2 HIGH Axios: ReDoS (O(N²)) in shouldBypassProxy host normalization, reachable via untrusted redi
CVE-2026-101903 8.2 HIGH Axios: ReDoS in fromDataURI data: URL parser freezes the Node event loop (DoS)
CVE-2026-101905 7.6 HIGH Axios: Node HTTP adapter prototype-pollution gadget allows request socket hijack via inher
CVE-2026-101898 7.0 HIGH Axios: HTTP/2 adapter bypasses configured DNS lookup and proxy controls
CVE-2026-101907 7.0 HIGH Axios: maxRedirects: 0 is not enforced by the fetch adapter, allowing redirect-based SSRF
CVE-2026-101900 6.9 MEDIUM Axios: Fetch Adapter Header Injection via Inherited FormData getHeaders
CVE-2026-101904 6.9 MEDIUM Axios: Header Injection via Inherited headers After Minimal Interceptor
CVE-2026-101908 6.9 MEDIUM Axios: Prototype pollution gadget in fetch adapter can alter outbound requests

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-101902

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