CVE-2026-42034
Axios' HTTP adapter-streamed uploads bypass maxBodyLength when maxRedirects: 0
5.3
MEDIUM
CVSS 3.1
EPSS 0.07%
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.
How to fix CVE-2026-42034
To remediate CVE-2026-42034, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 1.15.1 or later
Is CVE-2026-42034 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- >= 1.0.0, < 1.15.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |