CVE-2026-42039 PUBLISHED

Axios: unbounded recursion in toFormData causes DoS via deeply nested request data

Assigner: GitHub_M
Reserved: 23.04.2026 Published: 24.04.2026 Updated: 24.04.2026

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, toFormData recursively walks nested objects with no depth limit, so a deeply nested value passed as request data crashes the Node.js process with a RangeError. This vulnerability is fixed in 1.15.1 and 0.31.1.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	axios
Product	axios
Versions	Version >= 1.0.0, < 1.15.1 is affected Version < 0.31.1 is affected

References

https://github.com/axios/axios/security/advisories/GHSA-62hf-57xw-28j9

Problem Types

CWE-674: Uncontrolled Recursion CWE