Vulnerability-Lookup

CVE-2026-70605 (GCVE-0-2026-70605)

Vulnerability from cvelistv5 – Published: 2026-08-05 16:04 – Updated: 2026-08-06 14:24

Title

Electron: HTTP redirect followed into local file loader

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.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/electron/electron/security/adv…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
electron	electron	Affected: < 39.8.8 Affected: >= 40.0.0-alpha.1, < 40.9.0 Affected: >= 41.0.0-alpha.1, < 41.2.1 Affected: >= 42.0.0-alpha.1, < 42.0.0-beta.3

Show details on NVD website

JSON

To clipboard

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GHSA-V64R-4M7R-3MVQ

Vulnerability from github – Published: 2026-08-05 16:04 – Updated: 2026-08-05 16:04

Summary

Electron: HTTP redirect followed into local file loader

Details

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

Severity

5.9 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "39.8.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 40.9.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "40.0.0-alpha.1"
            },
            {
              "fixed": "40.9.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
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    },
    {
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        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
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          "events": [
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    },
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      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "42.0.0-alpha.1"
            },
            {
              "fixed": "42.0.0-beta.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-70605"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-05T16:04:09Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\nWhen 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.\n\nApps 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.\n\n### Workarounds\nSet `redirect: \u0027error\u0027` or `redirect: \u0027manual\u0027` on requests to untrusted URLs and validate any redirect target before following it.\n\n### Fixed Versions\n* `42.0.0-beta.3`\n* `41.2.1`\n* `40.9.0`\n* `39.8.8`\n\n### For more information\nIf you have any questions or comments about this advisory, email Electron at [security@electronjs.org](mailto:security@electronjs.org)",
  "id": "GHSA-v64r-4m7r-3mvq",
  "modified": "2026-08-05T16:04:09Z",
  "published": "2026-08-05T16:04:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/security/advisories/GHSA-v64r-4m7r-3mvq"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/electron/electron"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Electron: HTTP redirect followed into local file loader"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

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