CVE-2026-25639
Axios affected by Denial of Service via __proto__ Key in mergeConfig
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Axios is a promise based HTTP client for the browser and Node.js. Prior to versions 0.30.3 and 1.13.5, the mergeConfig function in axios crashes with a TypeError when processing configuration objects containing __proto__ as an own property. An attacker can trigger this by providing a malicious configuration object created via JSON.parse(), causing complete denial of service. This vulnerability is fixed in versions 0.30.3 and 1.13.5.
| CWE | CWE-754 |
| Vendor | axios |
| Product | axios |
| Published | Feb 9, 2026 |
| Last Updated | Jul 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
axios / axios
>= 1.0.0, < 1.13.5 < 0.30.3
References
github.com: https://github.com/axios/axios/security/advisories/GHSA-43fc-jf86-j433 github.com: https://github.com/axios/axios/pull/7369 github.com: https://github.com/axios/axios/pull/7388 github.com: https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57 github.com: https://github.com/axios/axios/commit/d7ff1409c68168d3057fc3891f911b2b92616f9e github.com: https://github.com/axios/axios/releases/tag/v0.30.3 github.com: https://github.com/axios/axios/releases/tag/v1.13.5 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-25639 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2438237 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25639.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6277 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6428 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:41064 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:5633 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:8229 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:36882 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:13548 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6308 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6309 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6174 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6802 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:2694 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:25041 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:5807 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:10184 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:19712 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:7249 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:5142 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:5174 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6192 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6170 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3107 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3106 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3105 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3109 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4942 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6568 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6497 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6567 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:5665 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:5168 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:8499 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:8500 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:8501 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3087 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:13542 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:9848 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:5636 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:8218 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:11414