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Vulnerability · Published Sep 28, 2026 · Assigned by GitHub_M

CVE-2026-101905Axios: Node HTTP adapter prototype-pollution gadget allows request socket hijack via inherited createConnection

High 7.6

In plain English

A high-severity prototype pollution in axios from axios. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)7.6High
Exploit odds (30 days)0.4%top 63.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Axios is a promise-based HTTP client for the browser and Node.js. From 1.15.2 until 1.20.0, the Node HTTP adapter in lib/adapters/http.js supplies request options without an own createConnection value. A separate same-process prototype-pollution flaw places a function on Object.prototype.createConnection. Node resolves and invokes the inherited createConnection socket factory, allowing the attacker-controlled function to select the transport endpoint. The attacker endpoint can receive request headers and bodies, including credentials, and return attacker-controlled responses while the URL appears legitimate. This issue is fixed in version 1.20.0.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12node-axiosno fix listedDEBIAN-CVE-2026-101905
Debian:13node-axiosno fix listedDEBIAN-CVE-2026-101905
Debian:14node-axios1.20.0-1DEBIAN-CVE-2026-101905
Ubuntu:26.10node-axiosno fix listedUBUNTU-CVE-2026-101905
npmaxios1.20.0GHSA-m8m8-qj5v-23w3

Affected products (as reported)

VendorProductVersions
axios axios >= 1.15.2, < 1.20.0

Weakness: CWE-441, CWE-1321 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References