CVE-2026-40175 — AI Deep Analysis Summary

- **Essence**: Axios has a **request header injection chain** vulnerability 🚨 - **Consequence**: Can **steal cloud metadata without limit** → all sensitive information leaked 💥 - Attacks can cross scopes and affect o…

- **Root cause**: **HTTP request header injection** flaw 🔍 - User input is not properly filtered → malicious Header constructed - Similar to the idea of **CWE-113** (HTTP response header injection)

- **Affected component**: Axios (JS HTTP client) 📦 - **Affected versions**: ≤ v1.14.x (fixed in v1.15.0) ✅ - Applications using Axios to make external requests may all be affected ⚠️

- **Privilege requirement**: No login needed 🚪`PR:N` - **Data obtainable**: Cloud environment **metadata** (e.g., keys, credentials) 🔑 - Leads to risk of **full control over cloud resources** 💀

- **Exploitation difficulty**: Extremely low 🟢 - `AV:N` (network reachable) + `UI:N` (no interaction required) - No special configuration or authentication needed 🧩

- **Existing exploit**: No public PoC yet 📭 - `pocs` list is empty 🔍 - No clear in-the-wild exploitation reports 🕵️

- **Self-check indicators**: Check if using Axios ≤ v1.14.x 🔎 - Search code for **Header concatenation** logic ⚙️ - Monitor abnormal external requests (including metadata URLs) 📡

- **Officially fixed** ✅ - See commit [`3631854`](https://github.com/axios/axios/commit/363185461b90b1b78845dc8a99a1f103d9b122a1) 🛠️ - Released v1.15.0 with fix 📦 - Security advisory: [GHSA-fvcv-3m26-pcqx](https://…

- **Upgrade Axios** to ≥ v1.15.0 🚀 - If upgrade is impossible: strictly filter user input → prohibit custom Header concatenation 🚫 - Restrict request target scope 🌐

- **Priority**: 🔥 Extremely high! - CVSS 3.1: **9.0+** (`C:H/I:H/A:H`) - Mandatory for cloud environments 🏃‍♂️💨 - Fix early = lose less data 💡