Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-101900— Axios: Fetch Adapter Header Injection via Inherited FormData getHeaders

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 1.12.0 至 1.20.0 期间， 在解析 FormData 请求头时，会读取继承自原型的 、 和 属性。此外，同一进程内的原型污染漏洞可导致注入一个数组或非纯类实例，其继承的属性使其行为类似于 FormData（纯对象已被阻止处理）。其中，继承的 函数可返回攻击者控制的请求头，这些请求头会被 合并到 fetch 适配器的请求中。攻击者控制的请求头可能篡改授权、缓存、元数据服务或特定应用相关的请求行为。该

CVSS 6.9 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
axios axios >= 1.12.0, < 1.20.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-101900

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Axios: Fetch Adapter Header Injection via Inherited FormData getHeaders
Source: CVE Program / CVE List V5
Vulnerability Description
Axios is a promise-based HTTP client for the browser and Node.js. From 1.12.0 until 1.20.0, ResolveConfig reads inherited Symbol.toStringTag, append, and getHeaders properties while resolving FormData headers. A separate same-process prototype-pollution flaw supplies an array or non-plain class instance whose inherited properties make it appear FormData-like; plain objects are blocked. The inherited getHeaders function can return attacker-controlled headers that resolveConfig merges into a fetch adapter request. Attacker-controlled headers can alter authorization, cache, metadata-service, or application-specific request behavior. This issue is fixed in version 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:L/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
axios axios >= 1.12.0, < 1.20.0 -

II. Public POCs for CVE-2026-101900

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-101900

请登录查看更多情报信息。

Other References for CVE-2026-101900 (4)

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-2026-101902 6.9 MEDIUM Axios: Prototype-Pollution Gadget in the Default Instance Allows Inherited Object.prototyp
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-74

V. Comments for CVE-2026-101900

No comments yet

Leave a comment