CVE-2026-70606 (GCVE-0-2026-70606)
Vulnerability from cvelistv5
Published
2026-08-05 16:07
Modified
2026-08-05 17:23
CWE
  • CWE-668 - Exposure of Resource to Wrong Sphere
Summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 40.10.6, 41.9.1, 42.5.1, and 43.0.0, when a custom protocol handler returned a ProtocolResponse with a url and no session, Electron made the upstream request through defaultSession instead of the session that handled the protocol. A cached response could then be reused across otherwise isolated session partitions. Apps that use ProtocolResponse.url, omit ProtocolResponse.session, and rely on separate sessions to isolate content are affected. This issue is fixed in versions 40.10.6, 41.9.1, 42.5.1, and 43.0.0.
Impacted products
Vendor Product Version
electron electron Version: >= 40.0.0-alpha.1, < 40.10.6
Version: >= 41.0.0-alpha.1, < 41.9.1
Version: >= 42.0.0-alpha.1, < 42.5.1
Version: >= 43.0.0-alpha.1, < 43.0.0
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-70606",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-05T17:15:44.765454Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-05T17:23:30.639Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "electron",
          "vendor": "electron",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 40.0.0-alpha.1, \u003c 40.10.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 41.0.0-alpha.1, \u003c 41.9.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 42.0.0-alpha.1, \u003c 42.5.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 43.0.0-alpha.1, \u003c 43.0.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 40.10.6, 41.9.1, 42.5.1, and 43.0.0, when a custom protocol handler returned a ProtocolResponse with a url and no session, Electron made the upstream request through defaultSession instead of the session that handled the protocol. A cached response could then be reused across otherwise isolated session partitions. Apps that use ProtocolResponse.url, omit ProtocolResponse.session, and rely on separate sessions to isolate content are affected. This issue is fixed in versions 40.10.6, 41.9.1, 42.5.1, and 43.0.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-668",
              "description": "CWE-668: Exposure of Resource to Wrong Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T16:07:46.008Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/electron/electron/security/advisories/GHSA-r4w5-6pfg-jxp5",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/electron/electron/security/advisories/GHSA-r4w5-6pfg-jxp5"
        }
      ],
      "source": {
        "advisory": "GHSA-r4w5-6pfg-jxp5",
        "discovery": "UNKNOWN"
      },
      "title": "Electron: ProtocolResponse.url reuses the default session cache instead of the registering session"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-70606",
    "datePublished": "2026-08-05T16:07:46.008Z",
    "dateReserved": "2026-08-04T19:50:27.328Z",
    "dateUpdated": "2026-08-05T17:23:30.639Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-70606\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-05T17:15:44.765454Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-05T17:23:21.523Z\"}}], \"cna\": {\"title\": \"Electron: ProtocolResponse.url reuses the default session cache instead of the registering session\", \"source\": {\"advisory\": \"GHSA-r4w5-6pfg-jxp5\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.9, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"electron\", \"product\": \"electron\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 40.0.0-alpha.1, \u003c 40.10.6\"}, {\"status\": \"affected\", \"version\": \"\u003e= 41.0.0-alpha.1, \u003c 41.9.1\"}, {\"status\": \"affected\", \"version\": \"\u003e= 42.0.0-alpha.1, \u003c 42.5.1\"}, {\"status\": \"affected\", \"version\": \"\u003e= 43.0.0-alpha.1, \u003c 43.0.0\"}]}], \"references\": [{\"url\": \"https://github.com/electron/electron/security/advisories/GHSA-r4w5-6pfg-jxp5\", \"name\": \"https://github.com/electron/electron/security/advisories/GHSA-r4w5-6pfg-jxp5\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 40.10.6, 41.9.1, 42.5.1, and 43.0.0, when a custom protocol handler returned a ProtocolResponse with a url and no session, Electron made the upstream request through defaultSession instead of the session that handled the protocol. A cached response could then be reused across otherwise isolated session partitions. Apps that use ProtocolResponse.url, omit ProtocolResponse.session, and rely on separate sessions to isolate content are affected. This issue is fixed in versions 40.10.6, 41.9.1, 42.5.1, and 43.0.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-668\", \"description\": \"CWE-668: Exposure of Resource to Wrong Sphere\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-08-05T16:07:46.008Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-70606\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T17:23:30.639Z\", \"dateReserved\": \"2026-08-04T19:50:27.328Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-08-05T16:07:46.008Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…