CVE-2022-36077 Electron subject to Exfiltration of hashed SMB credentials on Windows via file:// redirect
Attackers can exfiltrate hashed SMB credentials from Windows users by exploiting a delay in file:// URL redirect checks within the Electron framework.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-36077?
CVE-2022-36077 is a high-severity vulnerability in Electronjs Electron, published on 8 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Electron framework enables writing cross-platform desktop applications using JavaScript, HTML and CSS. In versions prior to 21.0.0-beta.1, 20.0.1, 19.0.11, and 18.3.7, Electron is vulnerable to Exposure of Sensitive Information. When following a redirect, Electron delays a check for redirecting to file:// URLs from other schemes. The contents of the file is not available to the renderer following the redirect, but if the redirect target is a SMB URL such as `file://some.website.com/`, then in some cases, Windows will connect to that server and attempt NTLM authentication, which can include sending hashed credentials.This issue has been patched in versions: 21.0.0-beta.1, 20.0.1, 19.0.11, and 18.3.7. Users are recommended to upgrade to the latest stable version of Electron. If upgrading isn't possible, this issue can be addressed without upgrading by preventing redirects to file:// URLs in the `WebContents.on('will-redirect')` event, for all WebContents as a workaround.
Which versions are affected by CVE-2022-36077?
6 open source packages ship an affected version, including electron. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
electron npm | All versions | 18.3.7 |
electron npm | All versions | 18.3.7 |
electron npm | From 19.0.0-beta.1 | 19.0.11 |
electron npm | From 19.0.0-beta.1 | 19.0.11 |
electron npm | From 20.0.0-beta.1 | 20.0.1 |
electron npm | From 20.0.0-beta.1 | 20.0.1 |
Products include Electronjs Electron.
How do I fix CVE-2022-36077?
Upgrade electron to a fixed version for your release line: 18.3.7, 19.0.11 or 20.0.1.
Is CVE-2022-36077 being exploited?
There is no known exploitation of CVE-2022-36077 in the wild and no public exploit code.
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- CVE-2018-1000118 Electron protocol handler browser vulnerable to Command Injection
- CVE-2026-34780 Electron: Context Isolation bypass via contextBridge VideoFrame transfer
- CVE-2026-102676 Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions
- CVE-2026-102673 Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab
Sources
Also known as GHSA-p2jh-44qj-pf2v.