Is CVE-2026-70611 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-70611 being exploited in the wild.

How severe is CVE-2026-70611?

Medium severity, with a CVSS score of 6.9, published 5 August 2026.

Which products and versions are affected?

electron (npm) SEMVER:introduced=0,fixed=39.8.9.

Is there a fix for CVE-2026-70611?

Yes. electron (npm): upgrade to 39.8.9 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-70611 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-70611?

Check whether you run electron (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-70611: Electron command injection in DevTools reveal in file manager

CVE-2026-70611 · Severity: medium · CVSS 6.9 · Published 2026-08-05

Electron is a framework used to build desktop applications like Slack, Discord, and VS Code. A vulnerability in its developer tools (DevTools) could allow a malicious extension or script to bypass security protections and execute unauthorized files on a user's computer. This could lead to the execution of malicious code outside of the application's restricted environment, potentially compromising the host system.

Technologies: electron (npm). Vendors: npm.

Quick answers

Is CVE-2026-70611 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-70611 being exploited in the wild.
How severe is CVE-2026-70611?: Medium severity, with a CVSS score of 6.9, published 5 August 2026.
Which products and versions are affected?: electron (npm) SEMVER:introduced=0,fixed=39.8.9.
Is there a fix for CVE-2026-70611?: Yes. electron (npm): upgrade to 39.8.9 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-70611 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-70611?: Check whether you run electron (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

electron (npm): upgrade to 39.8.9 or later
```
npm install electron@39.8.9
```

Technical details

A command injection vulnerability (CWE-78) exists in the Electron DevTools embedder handler. The 'reveal in file manager' action incorrectly handles file paths, allowing it to launch a target file rather than simply revealing its location in the OS file explorer. An attacker who can execute scripts within the DevTools frontend—for instance, via a malicious DevTools extension—can exploit this to achieve native code execution outside the renderer sandbox. The vulnerability is patched in versions 39.8.9, 40.9.2, 41.2.1, and 42.0.0-beta.3 by migrating the handler to use the more secure 'ShowItemInFolder' method.

Affected products

Electron Electron < 39.8.9, >= 40.0.0-alpha.1 < 40.9.2, >= 41.0.0-alpha.1 < 41.2.1, >= 42.0.0-alpha.1 < 42.0.0-beta.3

Identifiers

CVE-2026-70611
GHSA-f2r8-jv7c-xqmp

Timeline

2026-04-11: patched: Initial backport PRs for fix merged
2026-07-27: disclosed
2026-08-05: advisory

References

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