CVE-2025-58754: Axios is vulnerable to DoS attack through lack of data size check

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-09-12 · updated 2026-10-19
Weakness: CWE-770

Description

Axios is a promise based HTTP client for the browser and Node.js. When Axios starting in version 0.28.0 and prior to versions 0.30.2 and 1.12.0 runs on Node.js and is given a URL with the `data:` scheme, it does not perform HTTP. Instead, its Node http adapter decodes the entire payload into memory (`Buffer`/`Blob`) and returns a synthetic 200 response. This path ignores `maxContentLength` / `maxBodyLength` (which only protect HTTP responses), so an attacker can supply a very large `data:` URI and cause the process to allocate unbounded memory and crash (DoS), even if the caller requested `responseType: 'stream'`. Versions 0.30.2 and 1.12.0 contain a patch for the issue.

Affected products

axios: before 0.30.2; from 1.0.0 before 1.12.0 — fixed in 0.30.2, 1.12.0

How to fix

Upgrade to a fixed version: axios 0.30.2, 1.12.0. Check the vendor advisory for mitigations.

References

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