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Vulnerability · Published Apr 24, 2026 · Assigned by GitHub_M

CVE-2026-42034Axios: HTTP adapter streamed uploads bypass maxBodyLength when maxRedirects: 0

Medium 5.3

In plain English

A medium-severity resource allocation without limits in axios from axios. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 74.1% 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. Prior to 1.15.1 and 0.31.1, for stream request bodies, maxBodyLength is bypassed when maxRedirects is set to 0 (native http/https transport path). Oversized streamed uploads are sent fully even when the caller sets strict body limits. This vulnerability is fixed in 1.15.1 and 0.31.1.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12node-axiosno fix listedDEBIAN-CVE-2026-42034
Debian:13node-axiosno fix listedDEBIAN-CVE-2026-42034
Debian:14node-axios1.15.2-1DEBIAN-CVE-2026-42034
Ubuntu:25.10node-axiosno fix listedUBUNTU-CVE-2026-42034
Ubuntu:26.10node-axiosno fix listedUBUNTU-CVE-2026-42034
npmaxios0.31.1GHSA-5c9x-8gcm-mpgx
npmaxios1.15.1GHSA-5c9x-8gcm-mpgx

Affected products (as reported)

VendorProductVersions
axios axios >= 1.0.0, < 1.15.1< 0.31.1

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References