# CVE-2026-70605: Electron: HTTP redirect followed into local file loader

> Remote attackers can redirect Electron network requests to local files, potentially disclosing sensitive local data if the application exposes the response body.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 5 Aug 2026
- **Updated:** 6 Aug 2026
- **Also known as:** GHSA-v64r-4m7r-3mvq

## What is CVE-2026-70605?

CVE-2026-70605 is a medium-severity server-side request forgery vulnerability in Electronjs Electron, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, when following HTTP redirects, net.fetch() and net.request() did not restrict which schemes a redirect could target. A remote server could redirect a request to a local resource, and if the app returns or forwards the response body, local file contents could be disclosed. Apps are only affected if they make net requests to attacker-influenced URLs with redirects followed and expose the response body. This issue is fixed in versions 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-70605?

8 open source packages ship an affected version, including electron. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `electron` | npm | All versions | 39.8.8 |
| `electron` | npm | All versions | 39.8.8 |
| `electron` | npm | From 40.0.0-alpha.1 | 40.9.1 |
| `electron` | npm | From 40.0.0-alpha.1 | 40.9.1 |
| `electron` | npm | From 41.0.0-alpha.1 | 41.2.1 |
| `electron` | npm | From 41.0.0-alpha.1 | 41.2.1 |
| `electron` | npm | From 42.0.0-alpha.1 | 42.0.0-beta.3 |
| `electron` | npm | From 42.0.0-alpha.1 | 42.0.0-beta.3 |

Products: Electronjs Electron.

## How do I fix CVE-2026-70605?

Upgrade electron to a fixed version for your release line: 39.8.8, 40.9.1, 41.2.1 or 42.0.0-beta.3.

## Is CVE-2026-70605 being exploited?

There is no known exploitation of CVE-2026-70605 in the wild and no public exploit code.

## Other vulnerabilities in Electronjs Electron

- [CVE-2017-16151](https://insights.sbomify.com/CVE-2017-16151/): Chromium Remote Code Execution in electron (critical 9.8)
- [CVE-2018-1000118](https://insights.sbomify.com/CVE-2018-1000118/): Electron protocol handler browser vulnerable to Command Injection (high 8.8)
- [CVE-2026-34780](https://insights.sbomify.com/CVE-2026-34780/): Electron: Context Isolation bypass via contextBridge VideoFrame transfer (high 8.4)
- [CVE-2026-102676](https://insights.sbomify.com/CVE-2026-102676/): Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions (high 8.3)
- [CVE-2026-102673](https://insights.sbomify.com/CVE-2026-102673/): Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-70605 and fix it if it is affected.

What it is: CVE-2026-70605 is a medium-severity server-side request forgery vulnerability in Electronjs Electron, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-70605 in the wild and no public exploit code.

Affected packages and fixed versions:
- electron (npm): affected all versions; fixed in 39.8.8
- electron (npm): affected all versions; fixed in 39.8.8
- electron (npm): affected from 40.0.0-alpha.1; fixed in 40.9.1
- electron (npm): affected from 40.0.0-alpha.1; fixed in 40.9.1
- electron (npm): affected from 41.0.0-alpha.1; fixed in 41.2.1
- electron (npm): affected from 41.0.0-alpha.1; fixed in 41.2.1
- electron (npm): affected from 42.0.0-alpha.1; fixed in 42.0.0-beta.3
- electron (npm): affected from 42.0.0-alpha.1; fixed in 42.0.0-beta.3

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-70605/ (Markdown: https://insights.sbomify.com/CVE-2026-70605/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-70605
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-70605
- OSV: https://osv.dev/vulnerability/CVE-2026-70605

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-70605/
Summaries are generated and may contain mistakes; the official description above is the record.