chore(deps): update dependency axios to v1.13.5 [security] (main)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	OpenSSF
axios (source)	dependencies	patch	1.13.4 → 1.13.5

GitHub Vulnerability Alerts

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.

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Release Notes

axios/axios (axios)

v1.13.5

Compare Source

Release 1.13.5

Highlights

• Security: Fixed a potential Denial of Service issue involving the __proto__ key in mergeConfig. (PR #​7369)
• Bug fix: Resolved an issue where AxiosError could be missing the status field on and after v1.13.3. (PR #​7368)

Changes

Security

• Fix Denial of Service via __proto__ key in mergeConfig. (PR #​7369)

Fixes

• Fix/5657. (PR #​7313)
• Ensure status is present in AxiosError on and after v1.13.3. (PR #​7368)

Features / Improvements

• Add input validation to isAbsoluteURL. (PR #​7326)
• Refactor: bump minor package versions. (PR #​7356)

Documentation

• Clarify object-check comment. (PR #​7323)
• Fix deprecated Buffer constructor usage and README formatting. (PR #​7371)

CI / Maintenance

• Chore: fix issues with YAML. (PR #​7355)
• CI: update workflow YAMLs. (PR #​7372)
• CI: fix run condition. (PR #​7373)
• Dev deps: bump karma-sourcemap-loader from 0.3.8 to 0.4.0. (PR #​7360)
• Chore(release): prepare release 1.13.5. (PR #​7379)

New Contributors

• @​sachin11063 (first contribution — PR #​7323)
• @​asmitha-16 (first contribution — PR #​7326)

Full Changelog: axios/axios@v1.13.4...v1.13.5

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Configuration

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[github-actions]

➖ Are we earthbuild yet?

No change in "earthly" occurrences

📈 Overall Progress

Branch	Total Count
main	5658
This PR	5658
Difference	+0

---

Keep up the great work migrating from Earthly to Earthbuild! 🚀

💡 Tips for finding more occurrences

Run locally to see detailed breakdown:

./.github/scripts/count-earthly.sh

Note that the goal is not to reach 0.
There is anticipated to be at least some occurences of earthly in the source code due to backwards compatibility with config files and language constructs.