Axios
CVE-2026-25639
HIGH
GHSA-43fc-jf86-j433
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessCraft JSON payload with __proto__ property
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ExploitSend to axios mergeConfig function
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ExecutionTrigger TypeError exception
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ImpactApplication crashes causing denial of service
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Unusual condition handling
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| Exploitation Conditions | Application must use axios versions prior to 0.30.3 or 1.13.5 and process untrusted JSON configuration objects through mergeConfig function without input validation. |
| Impact | CVSS 7.5 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Public exploit/POC available. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Axios versions up to 0.30.3 is affected by improper check for unusual or exceptional conditions (CVSS 7.5).
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in npm
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability (CWE-754: Improper Check for Unusual or Exceptional Conditions) affects Axios. 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.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from Vendor (github).
CVSS VectorVendor: github
Lifecycle Timeline
3DescriptionCVE.org
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.
Blast Radius
ecosystem impact- 273 npm packages depend on axios (189 direct, 84 indirect)
Ecosystem-wide dependent count for version 1.0.0.
Executive ViewAI
Axios library versions up to 0.30.3 contain a vulnerability that could allow attackers to bypass security checks, potentially compromising applications that handle sensitive data or transactions. Organizations using affected versions in production environments face immediate risk, particularly if those applications are internet-facing or process user input.
Apply vendor patch. If immediate patching is not feasible, implement network-based controls to restrict outbound connections from affected services, disable any conditional logic or exception-handling features not essential to core operations, and increase monitoring/alerting for unusual request patterns or exception conditions in application logs.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)CVE.org
NO_PROXY protection bypass in Axios HTTP client (versions 1.0.0-1.15.0 and ≤0.31.0) lets an attacker who controls a requ
JSON response tampering in the Axios HTTP client (versions 1.0.0 up to but not including 1.15.2) lets an attacker who ca
Prototype pollution via the Node.js HTTP adapter in axios allows an attacker who controls `Object.prototype.proxy` to si
axios is a promise based HTTP client for the browser and node.js. Rated high severity (CVSS 7.7), this vulnerability is
Axios is a promise based HTTP client for the browser and Node.js. Rated high severity (CVSS 7.5), this vulnerability is
axios 1.7.2 allows SSRF via unexpected behavior where requests for path relative URLs get processed as protocol relative
axios is vulnerable to Inefficient Regular Expression Complexity. Rated high severity (CVSS 7.5), this vulnerability is
Axios up to and including 0.18.0 allows attackers to cause a denial of service (application crash) by continuing to acce
Prototype pollution in Axios HTTP client versions before 1.15.1 and 0.31.1 enables silent interception and modification
Denial of service in Axios HTTP client before versions 1.15.1 and 0.31.1 allows remote unauthenticated attackers to cras
Prototype pollution in Axios library versions prior to 1.15.1 and 0.31.1 allows remote attackers to suppress HTTP error
An issue discovered in Axios 1.5.1 inadvertently reveals the confidential XSRF-TOKEN stored in cookies by including it i
Exploit-DB