CVE-2026-25639
Axios affected by Denial of Service via __proto__ Key in mergeConfig
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.
INFO
Published Date :
Feb. 9, 2026, 9:15 p.m.
Last Modified :
Feb. 18, 2026, 6:24 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Axios to version 1.13.5.
- Ensure configuration objects are sanitized.
Public PoC/Exploit Available at Github
CVE-2026-25639 has a 4 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-25639.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-25639 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-25639
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Java Shell Batchfile Dockerfile HTML JavaScript TypeScript CSS EJS SCSS
# مستودع asrar-mared هذا هو المستودع الرئيسي لمجموعة **المارد الرقمي**، نقطة التحكم المركزية التي تجمع كل المشاريع والميول التقنية تحت راية واحدة. يمثل الأساس الذي تُبنى عليه الفروع الأخرى، ويُدار منه كل شيء من تنظيم الكود إلى إدارة المجتمع. للاطلاع على المستودع: [asrar-mared](https://github.com/asrar-mared)
HTML CSS
An app where you can browse YSO(kuman514)'s arcade(shmups, Tetris, and more) records
CSS TypeScript JavaScript
Cloud Database Manager
webapp dbeaver databases database cloud-database-manager cloud
Batchfile Shell Java HTML JavaScript TypeScript CSS Dockerfile SCSS EJS
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-25639 vulnerability anywhere in the article.
-
The Hacker News
Weekly Recap: Outlook Add-Ins Hijack, 0-Day Patches, Wormable Botnet & AI Malware
This week’s recap shows how small gaps are turning into big entry points. Not always through new exploits, often through tools, add-ons, cloud setups, or workflows that people already trust and rarely ... Read more
-
CybersecurityNews
Axios Vulnerability Let Attackers Triggers DoS Condition and Crash Node.js Servers
Axios Vulnerability A high-severity security flaw has been discovered in Axios, one of the most popular HTTP client libraries used in the JavaScript ecosystem. The vulnerability, tracked as CVE-2026-2 ... Read more
-
Daily CyberSecurity
HTTP Down: High-Severity Axios Flaw (CVSS 7.5) Crashes Node.js Servers
A high-severity vulnerability has been discovered in Axios, the immensely popular HTTP client used by millions of developers for Node.js and browser-based applications. The flaw, tracked as CVE-2026-2 ... Read more
The following table lists the changes that have been made to the
CVE-2026-25639 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Feb. 18, 2026
Action Type Old Value New Value Changed Description Axios is a promise based HTTP client for the browser and Node.js. Prior to 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 1.13.5. 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. Added Reference https://github.com/axios/axios/commit/d7ff1409c68168d3057fc3891f911b2b92616f9e Added Reference https://github.com/axios/axios/pull/7369 Added Reference https://github.com/axios/axios/pull/7388 Added Reference https://github.com/axios/axios/releases/tag/v0.30.3 -
Initial Analysis by [email protected]
Feb. 18, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:* versions up to (excluding) 1.13.5 Added Reference Type GitHub, Inc.: https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/axios/axios/releases/tag/v1.13.5 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/axios/axios/security/advisories/GHSA-43fc-jf86-j433 Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
Feb. 09, 2026
Action Type Old Value New Value Added Description Axios is a promise based HTTP client for the browser and Node.js. Prior to 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 1.13.5. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-754 Added Reference https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57 Added Reference https://github.com/axios/axios/releases/tag/v1.13.5 Added Reference https://github.com/axios/axios/security/advisories/GHSA-43fc-jf86-j433