CVE-2026-70605 json
Electron: HTTP redirect followed into local file loader
published 2026-08-05 3 mo ago modified 2026-10-08 32 d ago also EUVD-2026-53442 , GHSA-v64r-4m7r-3mvq
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm electron 39.8.8, 40.9.1, 41.2.1, 42.0.0-beta.3
- atom electron 39.8.8, 40.9.0, 41.2.1, 42.0.0-beta.3
- electronjs electron 39.8.8, 40.9.0, 41.2.1, 42.0.0-beta.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | electron | <39.8.8 >=40.0.0-alpha.1, <40.9.1 >=41.0.0-alpha.1, <41.2.1 >=42.0.0-alpha.1, <42.0.0-beta.3 |
39.8.8 40.9.1 41.2.1 42.0.0-beta.3 |
Affected products
- electron electron
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/electron/electron/security/advisories/GHSA-v64r-4m7r-3mvq
web, vendor-advisory
-
github.com
/electron/electron
package
Sources
- CVE List CVE-2026-70605
- GitHub Advisory GHSA-v64r-4m7r-3mvq
- NVD CVE-2026-70605
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.