Resource exhaustion in Axios

CVE-2026-42036

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, when responseType: 'stream' is used, Axios returns the response stream without enforcing maxContentLength. This bypasses configured response-size limits and allows unbounded downstream consumption. This vulnerability is fixed in 1.15.1 and 0.31.1.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.005 (39.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-42036: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

  • Axios — versions >= 1.0.0, < 1.15.1, < 0.31.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-42036?
CVE-2026-42036 is a medium-severity vulnerability in Axios, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-04-24.
How severe is CVE-2026-42036?
Medium severity. CVSS v3 base score is 5.3 out of 10.