fix(deps): update dependency axios to v0.30.3 [security]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
axios (source)	0.26.1 → 0.30.3

GitHub Vulnerability Alerts

CVE-2023-45857

An issue discovered in Axios 0.8.1 through 1.5.1 inadvertently reveals the confidential XSRF-TOKEN stored in cookies by including it in the HTTP header X-XSRF-TOKEN for every request made to any host allowing attackers to view sensitive information.

CVE-2026-25639

Denial of Service via proto Key in mergeConfig

Summary

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.

Details

The vulnerability exists in lib/core/mergeConfig.js at lines 98-101:

utils.forEach(Object.keys({ ...config1, ...config2 }), function computeConfigValue(prop) {
  const merge = mergeMap[prop] || mergeDeepProperties;
  const configValue = merge(config1[prop], config2[prop], prop);
  (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);
});

When prop is '__proto__':

1. JSON.parse('{"__proto__": {...}}') creates an object with __proto__ as an own enumerable property
2. Object.keys() includes '__proto__' in the iteration
3. mergeMap['__proto__'] performs prototype chain lookup, returning Object.prototype (truthy object)
4. The expression mergeMap[prop] || mergeDeepProperties evaluates to Object.prototype
5. Object.prototype(...) throws TypeError: merge is not a function

The mergeConfig function is called by:

• Axios._request() at lib/core/Axios.js:75
• Axios.getUri() at lib/core/Axios.js:201
• All HTTP method shortcuts (get, post, etc.) at lib/core/Axios.js:211,224

PoC

import axios from "axios";

const maliciousConfig = JSON.parse('{"__proto__": {"x": 1}}');
await axios.get("https://httpbin.org/get", maliciousConfig);

Reproduction steps:

1. Clone axios repository or npm install axios
2. Create file poc.mjs with the code above
3. Run: node poc.mjs
4. Observe the TypeError crash

Verified output (axios 1.13.4):

TypeError: merge is not a function
    at computeConfigValue (lib/core/mergeConfig.js:100:25)
    at Object.forEach (lib/utils.js:280:10)
    at mergeConfig (lib/core/mergeConfig.js:98:9)

Control tests performed:

Test	Config	Result
Normal config	{"timeout": 5000}	SUCCESS
Malicious config	JSON.parse('{"__proto__": {"x": 1}}')	CRASH
Nested object	{"headers": {"X-Test": "value"}}	SUCCESS

Attack scenario:
An application that accepts user input, parses it with JSON.parse(), and passes it to axios configuration will crash when receiving the payload {"__proto__": {"x": 1}}.

Impact

Denial of Service - Any application using axios that processes user-controlled JSON and passes it to axios configuration methods is vulnerable. The application will crash when processing the malicious payload.

Affected environments:

• Node.js servers using axios for HTTP requests
• Any backend that passes parsed JSON to axios configuration

This is NOT prototype pollution - the application crashes before any assignment occurs.

---

Release Notes

axios/axios (axios)

v0.30.3: Release notes - v0.30.3

Compare Source

This is a critical security maintenance release for the v0.x branch. It addresses a high-priority vulnerability involving prototype pollution that could lead to a Denial of Service (DoS).

Recommendation: All users currently on the 0.x release line should upgrade to this version immediately to ensure environment stability.

🛡️ Security Fixes

• Backport: Fix DoS via proto key in merge config
  • Patched a vulnerability where specifically crafted configuration objects using the proto key could cause a Denial of Service during the merge process. - by @​FeBe95 in PR #​7388

⚙️ Maintenance & CI

• CI Infrastructure Update
  • Updated Continuous Integration workflows for the v0.x branch to maintain long-term support and build reliability. - by @​jasonsaayman in PR #​7407

⚠️ Breaking Changes

Configuration Merging Behavior:

As part of the security fix, Axios now restricts the merging of the proto key within configuration objects. If your codebase relies on unconventional deep-merging patterns that target the object prototype via Axios config, those operations will now be blocked. This is a necessary change to prevent prototype pollution.

Full Changelog: v0.30.2...v0.30.3

v0.30.2

Compare Source

What's Changed

• Backport maxContentLength vulnerability fix to v0.x by @​FeBe95 in #​7034

New Contributors

• @​FeBe95 made their first contribution in #​7034

Full Changelog: axios/axios@v0.30.1...v0.30.2

v0.30.1

Compare Source

Release notes:

Bug Fixes

• chore(deps): bump form-data from 4.0.0 to 4.0.4 for v0.x by @​wolandec in #​6978

Contributors to this release

• @​wolandec made their first contribution in #​6978

Full Changelog: axios/axios@v0.30.0...v0.30.1

v0.30.0

Compare Source

Release notes:

Bug Fixes

• fix: modify log while request is aborted by @​mori5321 in #​4917
• fix: update CHANGELOG.md for v0.x by @​TehZarathustra in #​6271
• fix: modify upgrade guide for 0.28.1's breaking change by @​nafeger in #​6787
• fix: backport allowAbsoluteUrls vulnerability fix to v0.x by @​thatguyinabeanie in #​6829
• fix: add allowAbsoluteUrls type by @​thatguyinabeanie in #​6849

Contributors to this release

• @​mori5321 made their first contribution in #​4917
• @​TehZarathustra made their first contribution in #​6271
• @​nafeger made their first contribution in #​6787
• @​thatguyinabeanie made their first contribution in #​6829

Full Changelog: axios/axios@v0.29.0...v0.30.0

v0.29.0

Compare Source

Release notes:

Bug Fixes

• fix(backport): backport security fixes in commits #​6167 and #​6163 to v0.x by @​Sean-Powell in #​6402
• fix: omit nulls in params by @​Willshaw in #​6394
• fix(backport): fix paramsSerializer function validation by @​solonzhu in #​6361
• fix: Regular Expression Denial of Service (ReDoS) by @​qiongshusheng in #​6708

Contributors to this release

• @​Sean-Powell made their first contribution in #​6402
• @​Willshaw made their first contribution in #​6394
• @​solonzhu made their first contribution in #​6361
• @​qiongshusheng made their first contribution in #​6708

v0.28.1

Compare Source

Release notes:

Release notes:

Bug Fixes

• fix(backport): custom params serializer support (#​6263)
• fix(backport): uncaught ReferenceError req is not defined (#​6307)

v0.28.0

Compare Source

Release notes:

Bug Fixes

• fix(security): fixed CVE-2023-45857 by backporting withXSRFToken option to v0.x (#​6091)

Backports from v1.x:

• Allow null indexes on formSerializer and paramsSerializer v0.x (#​4961)
• Fixing content-type header repeated #​4745
• Fixed timeout error message for HTTP 4738
• Added axios.formToJSON method (#​4735)
• URL params serializer (#​4734)
• Fixed toFormData Blob issue on node>v17 #​4728
• Adding types for progress event callbacks #​4675
• Fixed max body length defaults #​4731
• Added data URL support for node.js (#​4725)
• Added isCancel type assert (#​4293)
• Added the ability for the url-encoded-form serializer to respect the formSerializer config (#​4721)
• Add string[] to AxiosRequestHeaders type (#​4322)
• Allow type definition for axios instance methods (#​4224)
• Fixed AxiosError stack capturing; (#​4718)
• Fixed AxiosError status code type; (#​4717)
• Adding Canceler parameters config and request (#​4711)
• fix(types): allow to specify partial default headers for instance creation (#​4185)
• Added blob to the list of protocols supported by the browser (#​4678)
• Fixing Z_BUF_ERROR when no content (#​4701)
• Fixed race condition on immediate requests cancellation (#​4261)
• Added a clear() function to the request and response interceptors object so a user can ensure that all interceptors have been removed from an Axios instance #​4248
• Added generic AxiosAbortSignal TS interface to avoid importing AbortController polyfill (#​4229)
• Fix TS definition for AxiosRequestTransformer (#​4201)
• Use type alias instead of interface for AxiosPromise (#​4505)
• Include request and config when creating a CanceledError instance (#​4659)
• Added generic TS types for the exposed toFormData helper (#​4668)
• Optimized the code that checks cancellation (#​4587)
• Replaced webpack with rollup (#​4596)
• Added stack trace to AxiosError (#​4624)
• Updated AxiosError.config to be optional in the type definition (#​4665)
• Removed incorrect argument for NetworkError constructor (#​4656)

v0.27.2

Compare Source

Fixes and Functionality:

• Fixed FormData posting in browser environment by reverting #​3785 (#​4640)
• Enhanced protocol parsing implementation (#​4639)
• Fixed bundle size

v0.27.1

Compare Source

Fixes and Functionality:

• Removed import of url module in browser build due to huge size overhead and builds being broken (#​4594)
• Bumped follow-redirects to ^1.14.9 (#​4615)

v0.27.0

Compare Source

Breaking changes:

• New toFormData helper function that allows the implementor to pass an object and allow axios to convert it to FormData (#​3757)
• Removed functionality that removed the the Content-Type request header when passing FormData (#​3785)
• (*) Refactored error handling implementing AxiosError as a constructor, this is a large change to error handling on the whole (#​3645)
• Separated responsibility for FormData instantiation between transformRequest and toFormData (#​4470)
• (*) Improved and fixed multiple issues with FormData support (#​4448)

QOL and DevX improvements:

• Added a multipart/form-data testing playground allowing contributors to debug changes easily (#​4465)

Fixes and Functionality:

• Refactored project file structure to avoid circular imports (#​4515) & (#​4516)
• Bumped follow-redirects to ^1.14.9 (#​4562)

Internal and Tests:

• Updated dev dependencies to latest version

Documentation:

• Fixing incorrect link in changelog (#​4551)

Notes:

• (*) Please read these pull requests before updating, these changes are very impactful and far reaching.

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