CVE-2026-42039

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

Published Apr 24, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-62hf-57xw-28j9 Axios: unbounded recursion in toFormData causes DoS via deeply nested request data
References
Link Providers
https://access.redhat.com/errata/RHSA-2026:14937 cve-icon
https://access.redhat.com/errata/RHSA-2026:16476 cve-icon
https://access.redhat.com/errata/RHSA-2026:16532 cve-icon
https://access.redhat.com/errata/RHSA-2026:16534 cve-icon
https://access.redhat.com/errata/RHSA-2026:16535 cve-icon
https://access.redhat.com/errata/RHSA-2026:16542 cve-icon
https://access.redhat.com/errata/RHSA-2026:16874 cve-icon
https://access.redhat.com/errata/RHSA-2026:17468 cve-icon
https://access.redhat.com/errata/RHSA-2026:17474 cve-icon
https://access.redhat.com/errata/RHSA-2026:17657 cve-icon
https://access.redhat.com/errata/RHSA-2026:17699 cve-icon
https://access.redhat.com/errata/RHSA-2026:19109 cve-icon
https://access.redhat.com/errata/RHSA-2026:19375 cve-icon
https://access.redhat.com/errata/RHSA-2026:20889 cve-icon
https://access.redhat.com/errata/RHSA-2026:20938 cve-icon
https://access.redhat.com/errata/RHSA-2026:21017 cve-icon
https://access.redhat.com/errata/RHSA-2026:21338 cve-icon
https://access.redhat.com/errata/RHSA-2026:21772 cve-icon
https://access.redhat.com/errata/RHSA-2026:22465 cve-icon
https://access.redhat.com/errata/RHSA-2026:22619 cve-icon
https://access.redhat.com/errata/RHSA-2026:22629 cve-icon
https://access.redhat.com/errata/RHSA-2026:22840 cve-icon
https://access.redhat.com/errata/RHSA-2026:23361 cve-icon
https://access.redhat.com/errata/RHSA-2026:24473 cve-icon
https://access.redhat.com/errata/RHSA-2026:24536 cve-icon
https://access.redhat.com/errata/RHSA-2026:24539 cve-icon
https://access.redhat.com/errata/RHSA-2026:24853 cve-icon
https://access.redhat.com/errata/RHSA-2026:24977 cve-icon
https://access.redhat.com/errata/RHSA-2026:25041 cve-icon
https://access.redhat.com/errata/RHSA-2026:25089 cve-icon
https://access.redhat.com/errata/RHSA-2026:25271 cve-icon
https://access.redhat.com/errata/RHSA-2026:25273 cve-icon
https://access.redhat.com/errata/RHSA-2026:26214 cve-icon
https://access.redhat.com/errata/RHSA-2026:26225 cve-icon
https://access.redhat.com/errata/RHSA-2026:33574 cve-icon
https://access.redhat.com/errata/RHSA-2026:36882 cve-icon
https://access.redhat.com/errata/RHSA-2026:48085 cve-icon
https://access.redhat.com/errata/RHSA-2026:48670 cve-icon
https://access.redhat.com/errata/RHSA-2026:50300 cve-icon
https://access.redhat.com/security/cve/CVE-2026-42039 cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2461630 cve-icon
https://github.com/axios/axios/security/advisories/GHSA-62hf-57xw-28j9 cve-icon cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-42039 cve-icon
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42039.json cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-42039 cve-icon
History
Type Values Removed Values Added
First Time appeared Axios
Axios axios
CPEs cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:*
Vendors & Products Axios
Axios axios
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Axios: unbounded recursion in toFormData causes DoS via deeply nested request data
Weaknesses CWE-674
References
Metrics cvssV4_0

{'score': 6.9, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 10, 2026, 12:04 PM
Reserved
Apr 23, 2026, 4:05 PM
Status
Modified
Published
Apr 24, 2026, 6:16 PM
Modified
Nov 11, 2026, 11:10 PM
Severity
Important
Public date
Apr 24, 2026, 6:01 PM