High severity · published Feb 9, 2026
CVE-2026-25639
Axios affected by Denial of Service via __proto__ Key in mergeConfig
7.5
CVSS
2.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AX
axios · axios
>= 1.0.0, < 1.13.5; < 0.30.3 · source: vendor, NVD
LS
Logging Subsystem for Red Hat OpenShift · Red Hat
All versions, or not specified · source: CISA
MT
Migration Toolkit for Applications 8 · Red Hat
All versions, or not specified · source: CISA
NO
Network Observability (NETOBSERV) 1.11.0 · Red Hat
All versions, or not specified · source: CISA
OP
OpenShift Pipelines · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat 3scale API Management Platform 2 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Advanced Cluster Management for Kubernetes 2.11 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Advanced Cluster Management for Kubernetes 2.12 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Advanced Cluster Management for Kubernetes 2.13 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Advanced Cluster Management for Kubernetes 2.14 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Advanced Cluster Management for Kubernetes 2.15 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Ansible Automation Platform 2 · Red Hat
All versions, or not specified · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25639
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-25639
Patch
https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57
Patch
https://github.com/axios/axios/commit/d7ff1409c68168d3057fc3891f911b2b92616f9e
Issue Tracking
https://github.com/axios/axios/pull/7369
Issue Tracking
https://github.com/axios/axios/pull/7388
Release Notes
https://github.com/axios/axios/releases/tag/v0.30.3
Product
https://github.com/axios/axios/releases/tag/v1.13.5
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