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🚨 [security] Update axios 1.13.2 → 1.13.5 (patch)#56

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🚨 [security] Update axios 1.13.2 → 1.13.5 (patch)#56
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@depfu depfu Bot commented Feb 9, 2026 •
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Welcome to Depfu 👋

This is one of the first three pull requests with dependency updates we've sent your way. We tried to start with a few easy patch-level updates. Hopefully your tests will pass and you can merge this pull request without too much risk. This should give you an idea how Depfu works in general.

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🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ axios (1.13.2 → 1.13.5) · Repo · Changelog

Security Advisories 🚨

🚨 Axios is Vulnerable to Denial of Service via __proto__ Key in mergeConfig

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

1.13.5

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

Full Changelog: v1.13.4...v1.13.5

1.13.4

Overview

The release addresses issues discovered in v1.13.3 and includes significant CI/CD improvements.

Full Changelog: v1.13.3...v1.13.4

What's New in v1.13.4

Bug Fixes

  • fix: issues with version 1.13.3 (#7352) (ee90dfc)
    • Fixed issues discovered in v1.13.3 release
    • Cleaned up interceptor test files
    • Improved workflow configurations

Infrastructure & CI/CD

  • refactor: ci and build (#7340) (8ff6c19)

    • Major refactoring of CI/CD workflows
    • Consolidated workflow files for better maintainability
    • Added mise configuration for the development environment
    • Improved sponsor block update automation
    • Enhanced issue and PR templates
    • Added automatic release notes generation
    • Implemented workflow cancellation for concurrent runs

  • chore: codegen and some updates to workflows (76cf77b)

    • Code generation improvements
    • Workflow optimisations

Migration Notes

Breaking Changes

None in this release.

Deprecations

None in this release.

Contributors

Thank you to all contributors who made this release possible! Special thanks to:

1.13.3

Release notes:

Bug Fixes

  • http2: Use port 443 for HTTPS connections by default. (#7256) (d7e6065)
  • interceptor: handle the error in the same interceptor (#6269) (5945e40)
  • main field in package.json should correspond to cjs artifacts (#5756) (7373fbf)
  • package.json: add 'bun' package.json 'exports' condition. Load the Node.js build in Bun instead of the browser build (#5754) (b89217e)
  • silentJSONParsing=false should throw on invalid JSON (#7253) (#7257) (7d19335)
  • turn AxiosError into a native error (#5394) (#5558) (1c6a86d)
  • types: add handlers to AxiosInterceptorManager interface (#5551) (8d1271b)
  • types: restore AxiosError.cause type from unknown to Error (#7327) (d8233d9)
  • unclear error message is thrown when specifying an empty proxy authorization (#6314) (6ef867e)

Features

Reverts

  • Revert "fix: silentJSONParsing=false should throw on invalid JSON (#7253) (#7…" (#7298) (a4230f5), closes #7253 #7 #7298
  • deps: bump peter-evans/create-pull-request from 7 to 8 in the github-actions group (#7334) (2d6ad5e)

Contributors to this release

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 67 commits:

⁉️ dotenv (downgrade, 17.2.3 → 16.6.1) · Repo · Changelog

Release Notes

17.2.3 (from changelog)

Changed

  • Fixed typescript error definition (#912)

17.2.2 (from changelog)

Added

  • 🙏 A big thank you to new sponsor Tuple.app - the premier screen sharing app for developers on macOS and Windows. Go check them out. It's wonderful and generous of them to give back to open source by sponsoring dotenv. Give them some love back.

17.2.1 (from changelog)

Changed

  • Fix clickable tip links by removing parentheses (#897)

17.2.0 (from changelog)

Added

  • Optionally specify DOTENV_CONFIG_QUIET=true in your environment or .env file to quiet the runtime log (#889)
  • Just like dotenv any DOTENV_CONFIG_ environment variables take precedence over any code set options like ({quiet: false}) 
# .env
DOTENV_CONFIG_QUIET=true
HELLO="World"
// index.js
require('dotenv').config()
console.log(`Hello ${process.env.HELLO}`)

17.1.0 (from changelog)

Added

  • Add additional security and configuration tips to the runtime log (#884)
  • Dim the tips text from the main injection information text
const TIPS = [
  '🔐 encrypt with dotenvx: https://dotenvx.com',
  '🔐 prevent committing .env to code: https://dotenvx.com/precommit',
  '🔐 prevent building .env in docker: https://dotenvx.com/prebuild',
  '🛠️  run anywhere with `dotenvx run -- yourcommand`',
  '⚙️  specify custom .env file path with { path: \'/custom/path/.env\' }',
  '⚙️  enable debug logging with { debug: true }',
  '⚙️  override existing env vars with { override: true }',
  '⚙️  suppress all logs with { quiet: true }',
  '⚙️  write to custom object with { processEnv: myObject }',
  '⚙️  load multiple .env files with { path: [\'.env.local\', \'.env\'] }'
]

17.0.1 (from changelog)

Changed

  • Patched injected log to count only populated/set keys to process.env (#879)

17.0.0 (from changelog)

Changed

  • Default quiet to false - informational (file and keys count) runtime log message shows by default (#875)

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by more commits than we can show here.

🆕 @​types/graceful-fs (added, 4.1.9)

🆕 create-jest (added, 29.7.0)

🆕 diff-sequences (added, 29.6.3)

🆕 exit (added, 0.1.2)

🆕 is-core-module (added, 2.16.1)

🆕 jest-get-type (added, 29.6.3)

🆕 kleur (added, 3.0.3)

🆕 path-parse (added, 1.0.7)

🆕 prompts (added, 2.4.2)

🆕 resolve (added, 1.22.11)

🆕 resolve.exports (added, 2.0.3)

🆕 sisteransi (added, 1.0.5)

🆕 supports-preserve-symlinks-flag (added, 1.0.0)

🆕 @​jest/console (added, 29.7.0)

🆕 @​jest/core (added, 29.7.0)

🆕 @​jest/environment (added, 29.7.0)

🆕 @​jest/expect (added, 29.7.0)

🆕 @​jest/expect-utils (added, 29.7.0)

🆕 @​jest/fake-timers (added, 29.7.0)

🆕 @​jest/globals (added, 29.7.0)

🆕 @​jest/reporters (added, 29.7.0)

🆕 @​jest/schemas (added, 29.6.3)

🆕 @​jest/source-map (added, 29.6.3)

🆕 @​jest/test-result (added, 29.7.0)

🆕 @​jest/test-sequencer (added, 29.7.0)

🆕 @​jest/transform (added, 29.7.0)

🆕 @​jest/types (added, 29.6.3)

🆕 @​sinclair/typebox (added, 0.27.10)

🆕 @​sinonjs/fake-timers (added, 10.3.0)

🆕 babel-jest (added, 29.7.0)

🆕 babel-plugin-istanbul (added, 6.1.1)

🆕 babel-plugin-jest-hoist (added, 29.6.3)

🆕 babel-preset-jest (added, 29.6.3)

🆕 ci-info (added, 3.9.0)

🆕 cjs-module-lexer (added, 1.4.3)

🆕 wrap-ansi (added, 8.1.0)

🆕 expect (added, 29.7.0)

🆕 istanbul-lib-instrument (added, 5.2.1)

🆕 semver (added, 7.7.4)

🆕 istanbul-lib-source-maps (added, 4.0.1)

🆕 jest-changed-files (added, 29.7.0)

🆕 jest-circus (added, 29.7.0)

🆕 jest-config (added, 29.7.0)

🆕 jest-diff (added, 29.7.0)

🆕 jest-docblock (added, 29.7.0)

🆕 jest-each (added, 29.7.0)

🆕 jest-environment-node (added, 29.7.0)

🆕 jest-haste-map (added, 29.7.0)

🆕 jest-leak-detector (added, 29.7.0)

🆕 jest-matcher-utils (added, 29.7.0)

🆕 jest-message-util (added, 29.7.0)

🆕 jest-mock (added, 29.7.0)

🆕 jest-regex-util (added, 29.6.3)

🆕 jest-resolve (added, 29.7.0)

🆕 jest-resolve-dependencies (added, 29.7.0)

🆕 jest-runner (added, 29.7.0)

🆕 jest-runtime (added, 29.7.0)

🆕 jest-snapshot (added, 29.7.0)

🆕 jest-util (added, 29.7.0)

🆕 jest-validate (added, 29.7.0)

🆕 jest-watcher (added, 29.7.0)

🆕 jest-worker (added, 29.7.0)

🆕 pretty-format (added, 29.7.0)

🆕 pure-rand (added, 6.1.0)

🆕 write-file-atomic (added, 5.0.1)

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@depfu depfu Bot added the depfu label Feb 9, 2026
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@depfu depfu Bot mentioned this pull request Feb 9, 2026
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@depfu depfu Bot changed the title Update axios 1.13.2 → 1.13.5 (patch) 🚨 [security] Update axios 1.13.2 → 1.13.5 (patch) Feb 9, 2026
@depfu

depfu Bot commented Feb 28, 2026

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Closed in favor of #60.

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@depfu

depfu Bot commented Feb 28, 2026

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Closed in favor of #60.

@depfu depfu Bot closed this Feb 28, 2026
@depfu

depfu Bot commented Feb 28, 2026

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Closed in favor of #60.

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