GHSA-v64r-4m7r-3mvq CVE-2026-70605
Electron: HTTP redirect followed into local file loader
- Severity
- 5.9 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 0.32%
- Chance of exploitation in the next 30 days. Higher than 24.44% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-918 Server-Side Request Forgery (SSRF)
- Fix
39.8.8- Upgrade electron to this version or later
Description
Impact
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 (the default) and expose the response body. Apps that only request fixed, trusted URLs are not affected.
Workarounds
Set redirect: 'error' or redirect: 'manual' on requests to untrusted URLs and validate any redirect target before following it.
Fixed Versions
42.0.0-beta.341.2.140.9.039.8.8
For more information
If you have any questions or comments about this advisory, email Electron at security@electronjs.org
Affected versions
npm
| Package | Vulnerable | Fixed in |
|---|---|---|
| electron | < 39.8.8 |
39.8.8 |
| electron | >= 40.0.0-alpha.1, < 40.9.1 |
40.9.1 |
| electron | >= 41.0.0-alpha.1, < 41.2.1 |
41.2.1 |
| electron | >= 42.0.0-alpha.1, < 42.0.0-beta.3 |
42.0.0-beta.3 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
electron npm → 39.8.8
- npm
npm install electron@39.8.8- yarn
yarn add electron@39.8.8- pnpm
pnpm add electron@39.8.8
Severity breakdown
CVSS 3.1 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Weakness
CWE-918: Server-Side Request Forgery (SSRF)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
References
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
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| GHSA-995f-9x5r-2rcj Heap buffer overflow in GPU | Critical Known exploited | Also affects electron |
| GHSA-jr5w-w6x2-84p9 Electron: Mitigation for compromised eMudhra intermediate certificates | High | Also affects electron |
| GHSA-h3v5-h239-pg29 Electron: Off-screen rendering on macOS trusts GPU-supplied frame geometry | Low | Also affects electron |
| GHSA-3qxv-5xgr-q7w9 Electron: Frame subscription trusts GPU-supplied frame geometry | Low | Also affects electron |
| GHSA-997q-gvvc-jwmx Electron: openExternal permission requests can be attributed to the wrong origin | Medium | Also affects electron |
| GHSA-fw47-9c62-h3vw Electron: HID and USB permission checks can be attributed to the wrong origin | Medium | Also affects electron |
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