---
id: CVE-2026-101899
title: Axios is a promise-based HTTP client for the browser and Node.js
summary: >-
  Axios is a promise-based HTTP client for the browser and Node.js. From 1.15.0
  until 1.20.0, Axios shouldBypassProxy treats the NO_PROXY CIDR form as a
  textual hostname suffix instead of evaluating the network range. A request
  targets an …
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N'
cwe:
  - CWE-693
vendor: axios
product: axios
affected:
  - 'axios >= 1.15.0, < 1.20.0'
patched:
  - axios 1.20.0
published: '2026-10-13'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T16:00:33.533'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101899'
references:
  - url: >-
      https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a
    label: security-advisories@github.com
  - url: 'https://github.com/axios/axios/pull/11141'
    label: security-advisories@github.com
  - url: 'https://github.com/axios/axios/releases/tag/v1.20.0'
    label: security-advisories@github.com
  - url: 'https://github.com/axios/axios/security/advisories/GHSA-44g4-m2mj-wpvx'
    label: security-advisories@github.com
  - url: 'https://github.com/axios/axios/security/advisories/GHSA-44g4-m2mj-wpvx'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-44g4-m2mj-wpvx'
tags:
  - nvd
  - ghsa
  - npm
  - cve.org
  - exploit-available
epss: 0.00512
epssPercentile: 0.43469
aliases:
  - GHSA-44g4-m2mj-wpvx
ecosystem: npm
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-14T15:15:50.544437Z'
cvssSource: cna
ingestedAt: '2026-09-30T16:10:06.894Z'
---

## Overview

Axios is a promise-based HTTP client for the browser and Node.js. From 1.15.0 until 1.20.0, Axios shouldBypassProxy treats the NO_PROXY CIDR form as a textual hostname suffix instead of evaluating the network range. A request targets an address covered by a CIDR entry in NO_PROXY while a proxy is configured. The CIDR bypass rule is not matched, so the request is sent through the configured proxy. For plaintext HTTP, the proxy can observe and modify URLs, headers, and bodies; for HTTPS, it can observe connection metadata and CONNECT requests. This issue is fixed in version 1.20.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-101899)

Affected packages:

- `axios >= 1.15.0, < 1.20.0`

Patched in:

- `axios 1.20.0`

Source: https://github.com/advisories/GHSA-44g4-m2mj-wpvx