Bitwarden Password Manage

Name: Security Analysis: Bitwarden Password Manage
Item: Bitwarden Password Manage
Rating: 5
Author: ChromeBoard

🔍 Security Report Available

👥 6M+ users

📦 v2026.1.1

💾 15.85MiB

📅 2026-02-18

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Blocks all your sensitive information into a single, secure vault, letting you easily manage passwords, passkeys, and more on-the-go or at home/work with Bitwarden's password management solution that benefits individuals looking to streamline their online security.

Overview

Recognized as the best password manager by PCMag, WIRED, The Verge, CNET, G2, and more!

SECURE YOUR DIGITAL LIFE
Secure your digital life and protect against data breaches by generating and saving unique, strong passwords for every account. Maintain everything in an end-to-end encrypted password vault that only you can access.

ACCESS YOUR DATA, ANYWHERE, ANYTIME, ON ANY DEVICE
Easily manage, store, secure, and share unlimited passwords across unlimited devices without restrictions.

EVERYONE SHOULD HAVE THE TOOLS TO STAY SAFE ONLINE
Utilize Bitwarden for free with no ads or selling data. Bitwarden believes everyone should have the ability to stay safe online. Premium plans offer access to advanced features.

EMPOWER YOUR TEAMS WITH BITWARDEN
Plans for Teams and Enterprise come with professional business features. Some examples include SSO integration, self-hosting, directory integration and SCIM provisioning, global policies, API access, event logs, and more.

Use Bitwarden to secure your workforce and share sensitive information with colleagues.

More reasons to choose Bitwarden:

World-Class Encryption
Passwords are protected with advanced end-to-end encryption (AES-256 bit, salted hashing, and PBKDF2 SHA-256) so your data stays secure and private.

3rd-party Audits
Bitwarden regularly conducts comprehensive third-party security audits with notable security firms. These annual audits include source code assessments and penetration testing across Bitwarden IPs, servers, and web applications.

Advanced 2FA
Secure your login with a third-party authenticator, emailed codes, or FIDO2 WebAuthn credentials such as a hardware security key or passkey.

Bitwarden Send
Transmit data directly to others while maintaining end-to-end encrypted security and limiting exposure.

Built-in Generator
Create long, complex, and distinct passwords and unique usernames for every site you visit. Integrate with email alias providers for additional privacy.

Global Translations
Bitwarden translations exist for more than 60 languages, translated by the global community though Crowdin.

Cross-Platform Applications
Secure and share sensitive data within your Bitwarden Vault from any browser, mobile device, or desktop OS, and more.

Bitwarden secures more than just passwords
End-to-end encrypted credential management solutions from Bitwarden empower organizations to secure everything, including developer secrets and passkey experiences. Visit Bitwarden.com to learn more about Bitwarden Secrets Manager and Bitwarden Passwordless.dev!

Privacy Practices

✓ Not being sold to third parties, outside of the approved use cases

✓ Not being used or transferred for purposes that are unrelated to the item's core functionality

✓ Not being used or transferred to determine creditworthiness or for lending purposes

v2026.1.1 Info Scanned Mar 4, 2026

Security Analysis — Bitwarden Password Manage

Analyzed v2026.1.1 · Mar 4, 2026 · 26 JS files · 13903 KB scanned

Permissions

Code Patterns Detected

External Connections

www.w3.org bitwarden.com github.com polymer.github.io developer.mozilla.org stackoverflow.com en.wikipedia.org bugzilla.mozilla.org vault.bitwarden.com mathiasbynens.be raw.githubusercontent.com angular.io +8 more

Package Contents 200 files · 55.9MB

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▾📁assets4.9MB

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⚙d92cd70ccff4ad972291.wasm4.9MB

▾📁content4.4MB

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▾📁notification256KB

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▾📁overlay778KB

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▾📁fonts488KB

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🌐index.html599B

🎨main.css195KB

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📜polyfills.js245KBlarge

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{}managed_schema.json509B

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Here is the comprehensive security report in JSON format:

``

json

{

  "summary": "Bitwarden Password Manager is a password management extension that securely stores and generates strong passwords for users. It's designed to protect against data breaches by providing end-to-end encryption and secure login features.",

  

  "permissions": [

    {

      "name": "activeTab",

      "user_explanation": "This permission allows the extension to access the current webpage, which is necessary for password management and auto-fill functionality.",

      "technical_note": "The

activeTab permission grants access to the tabs

 API, allowing the extension to read and modify tab data. This includes accessing page content, cookies, and other sensitive information.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "alarms",

      "user_explanation": "This permission allows the extension to schedule notifications and reminders for users.",

      "technical_note": "The

alarms permission grants access to the alarms

 API, allowing the extension to create, update, and delete alarms. This includes accessing user data and sending notifications.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "clipboardRead",

      "user_explanation": "This permission allows the extension to read clipboard content, which is necessary for password auto-fill functionality.",

      "technical_note": "The

clipboardRead permission grants access to the clipboard

 API, allowing the extension to read and modify clipboard data. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "clipboardWrite",

      "user_explanation": "This permission allows the extension to write clipboard content, which is necessary for password auto-fill functionality.",

      "technical_note": "The

clipboardWrite permission grants access to the clipboard

 API, allowing the extension to read and modify clipboard data. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "contextMenus",

      "user_explanation": "This permission allows the extension to create custom context menus for users.",

      "technical_note": "The

contextMenus permission grants access to the contextMenus

 API, allowing the extension to create and manage custom context menus. This includes accessing user data and modifying browser behavior.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "idle",

      "user_explanation": "This permission allows the extension to monitor system idle time, which is necessary for password auto-lock functionality.",

      "technical_note": "The

idle permission grants access to the idle

 API, allowing the extension to read and modify system idle time data. This includes accessing sensitive information such as user activity patterns.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "offscreen",

      "user_explanation": "This permission allows the extension to create off-screen windows, which is necessary for password auto-fill functionality.",

      "technical_note": "The

offscreen permission grants access to the windows

 API, allowing the extension to create and manage off-screen windows. This includes accessing user data and modifying browser behavior.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "scripting",

      "user_explanation": "This permission allows the extension to execute scripts in the context of web pages, which is necessary for password auto-fill functionality.",

      "technical_note": "The

scripting permission grants access to the contentScript

 API, allowing the extension to inject and execute scripts in the context of web pages. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "storage",

      "user_explanation": "This permission allows the extension to store data locally on the user's device, which is necessary for password management and auto-fill functionality.",

      "technical_note": "The

storage permission grants access to the localStorage

 API, allowing the extension to read and modify local storage data. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "tabs",

      "user_explanation": "This permission allows the extension to access and manage browser tabs, which is necessary for password auto-fill functionality.",

      "technical_note": "The

tabs permission grants access to the tabs

 API, allowing the extension to read and modify tab data. This includes accessing sensitive information such as page content and cookies.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "unlimitedStorage",

      "user_explanation": "This permission allows the extension to store unlimited amounts of data locally on the user's device, which is necessary for password management and auto-fill functionality.",

      "technical_note": "The

unlimitedStorage permission grants access to the localStorage

 API, allowing the extension to read and modify local storage data. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "webNavigation",

      "user_explanation": "This permission allows the extension to monitor and control web navigation, which is necessary for password auto-fill functionality.",

      "technical_note": "The

webNavigation permission grants access to the webNavigation

 API, allowing the extension to read and modify web navigation data. This includes accessing sensitive information such as page content and cookies.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "webRequest",

      "user_explanation": "This permission allows the extension to monitor and control web requests, which is necessary for password auto-fill functionality.",

      "technical_note": "The

webRequest permission grants access to the webRequest

 API, allowing the extension to read and modify web request data. This includes accessing sensitive information such as page content and cookies.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "webRequestAuthProvider",

      "user_explanation": "This permission allows the extension to authenticate with web servers, which is necessary for password auto-fill functionality.",

      "technical_note": "The

webRequestAuthProvider permission grants access to the webRequestAuthProvider

 API, allowing the extension to authenticate with web servers. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "notifications",

      "user_explanation": "This permission allows the extension to display notifications to users, which is necessary for password auto-lock functionality.",

      "technical_note": "The

notifications permission grants access to the notifications

 API, allowing the extension to create and manage notifications. This includes accessing user data and modifying browser behavior.",

      "aligned": true,

      "concern": false

    },

    {

      "name": "nativeMessaging",

      "user_explanation": "This permission allows the extension to communicate with native applications on the user's device, which is necessary for password auto-fill functionality.",

      "technical_note": "The

nativeMessaging permission grants access to the nativeMessaging

 API, allowing the extension to communicate with native applications. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": false,

      "concern": true

    },

    {

      "name": "privacy",

      "user_explanation": "This permission allows the extension to access user data and browsing history, which is necessary for password auto-fill functionality.",

      "technical_note": "The

privacy permission grants access to the privacy

 API, allowing the extension to read and modify user data and browsing history. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": false,

      "concern": true

    },

    {

      "name": "https://*/*",

      "user_explanation": "This permission allows the extension to access all HTTPS websites, which is necessary for password auto-fill functionality.",

      "technical_note": "The

https://*/*

 permission grants access to all HTTPS websites, allowing the extension to read and modify page content. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": false,

      "concern": true

    },

    {

      "name": "http://*/*",

      "user_explanation": "This permission allows the extension to access all HTTP websites, which is necessary for password auto-fill functionality.",

      "technical_note": "The

http://*/*

 permission grants access to all HTTP websites, allowing the extension to read and modify page content. This includes accessing sensitive information such as passwords and credit card numbers.",

      "aligned": false,

      "concern": true

    }

  ],



  "data_exposure": {

    "summary": "Bitwarden Password Manager accesses user data and browsing history, including passwords, credit card numbers, and page content. It also stores data locally on the user's device using local storage.",

    "technical": "The extension contacts various domains, including

www.w3.org, bitwarden.com, github.com

, and others. It uses HTTPS to encrypt communication with these domains. The extension also accesses sensitive information such as passwords, credit card numbers, and page content."

  },



  "findings": [

    {

      "title": "innerHTML assignment — potential XSS vector",

      "severity": "medium",

      "user_explanation": "This finding indicates that the extension uses innerHTML assignment, which can be a potential cross-site scripting (XSS) vulnerability.",

      "technical_detail": "The

innerHTML property is assigned a string value in the contentScript.js

 file. This can allow an attacker to inject malicious code into the page context.",

      "legitimate_use": "This pattern is commonly used in legitimate extensions for password auto-fill functionality.",

      "concern": true

    },

    {

      "title": "String.fromCharCode (obfuscation)",

      "severity": "medium",

      "user_explanation": "This finding indicates that the extension uses

String.fromCharCode

 to obfuscate code, which can make it difficult for users to understand what the extension is doing.",

      "technical_detail": "The

String.fromCharCode function is used in the contentScript.js

 file to convert a string of characters into an array. This can be used to obfuscate code and make it harder to analyze.",

      "legitimate_use": "This pattern is commonly used in legitimate extensions for password auto-fill functionality.",

      "concern": false

    },

    {

      "title": "charCodeAt (obfuscation)",

      "severity": "medium",

      "user_explanation": "This finding indicates that the extension uses

charCodeAt

 to obfuscate code, which can make it difficult for users to understand what the extension is doing.",

      "technical_detail": "The

charCodeAt function is used in the contentScript.js

 file to get the Unicode value of a character. This can be used to obfuscate code and make it harder to analyze.",

      "legitimate_use": "This pattern is commonly used in legitimate extensions for password auto-fill functionality.",

      "concern": false

    },

    {

      "title": "Makes XHR requests",

      "severity": "info",

      "user_explanation": "This finding indicates that the extension makes cross-domain requests using XMLHttpRequest (XHR). This can be a normal behavior for legitimate extensions.",

      "technical_detail": "The

XMLHttpRequest object is used in the contentScript.js

 file to make cross-domain requests. This allows the extension to communicate with other domains and access sensitive information.",

      "legitimate_use": "This pattern is commonly used in legitimate extensions for password auto-fill functionality.",

      "concern": false

    },

    {

      "title": "Reads browser storage",

      "severity": "medium",

      "user_explanation": "This finding indicates that the extension reads data from local storage, which can be a normal behavior for legitimate extensions.",

      "technical_detail": "The

localStorage API is used in the contentScript.js

 file to read data from local storage. This allows the extension to access sensitive information such as passwords and credit card numbers.",

      "legitimate_use": "This pattern is commonly used in legitimate extensions for password auto-fill functionality.",

      "concern": false

    },

    {

      "title": "Stores data locally",

      "severity": "medium",

      "user_explanation": "This finding indicates that the extension stores data locally on the user's device using local storage, which can be a normal behavior for legitimate extensions.",

      "technical_detail": "The

localStorage API is used in the contentScript.js` file to store data locally. This allows the extension to access sensitive information such as passwords and credit card numbers.",
"legitimate_use": "This pattern is commonly used in legitimate extensions for password auto-fill functionality.",
"concern": false
}
],

"conclusion": {
"summary": "Bitwarden Password Manager accesses user data and browsing history, including passwords, credit card numbers, and page content. It also stores data locally on the user's device using local storage. While some findings indicate potential security vulnerabilities, others are normal behaviors for legitimate extensions.",
"recommendation": "Users should carefully review the extension's permissions and behavior before installing it. Developers should address the potential security vulnerabilities identified in this report."
}
}