GHSA-v64r-4m7r-3mvq: SSRF

Published Aug 5, 2026
·
Updated

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.3 41.2.1 40.9.0 39.8.8

For more information If you have any questions or comments about this advisory, email Electron at security@electronjs.org

Affected Software

4 affected componentsFixes available
npm/electron>=42.0.0-alpha.1<42.0.0-beta.3
42.0.0-beta.3
npm/electron>=41.0.0-alpha.1<41.2.1
41.2.1
npm/electron>=40.0.0-alpha.1<40.9.0
40.9.1
npm/electron<39.8.8
39.8.8

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade npm/electron to a version that resolves this vulnerability.

    Fixed in 42.0.0-beta.3
  2. Upgrade

    Upgrade npm/electron to a version that resolves this vulnerability.

    Fixed in 41.2.1
  3. Upgrade

    Upgrade npm/electron to a version that resolves this vulnerability.

    Fixed in 40.9.1
  4. Upgrade

    Upgrade npm/electron to a version that resolves this vulnerability.

    Fixed in 39.8.8
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 39.8.8
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 40.9.0
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 41.2.1
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 42.0.0-beta.3
  9. Configuration

    Set redirect: 'error' or redirect: 'manual' on requests to untrusted URLs, and validate any redirect target before following it.

    Electron net.fetch() / net.request() redirect = 'error' or 'manual'

Event History

Aug 5, 2026
Advisory Published
via GitHub·04:04 PM
Data Sourced
via GitHub·04:04 PM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203