{"id":"CVE-2020-26272","aliases":["EUVD-2021-0507","GHSA-hvf8-h2qh-37m9"],"status":"published","title":"Electron vulnerable to ID collision when routing IPC messages to renderers containing OOPIFs","description":"The Electron framework lets users write cross-platform desktop applications using JavaScript, HTML and CSS. In versions of Electron IPC prior to 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9, messages sent from the main process to a subframe in the renderer process, through webContents.sendToFrame, event.reply or when using the remote module, can in some cases be delivered to the wrong frame. If your app uses remote, calls webContents.sendToFrame, or calls event.reply in an IPC message handler then it is impacted by this issue. This has been fixed in versions 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9. There are no known workarounds for this issue.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01746,"percentile":0.78097,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-668"],"published":"2021-01-28T18:25:17Z","modified":"2026-10-20T14:08:50Z","fixes":[{"ecosystem":"npm","package":"electron","fixed_in":["9.4.0","10.2.0","11.1.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"electron","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.4.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"electron","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.2.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"electron","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0.0"},{"fixed":"11.1.0"}]}]},{"source":"osv","ecosystem":"npm","package":"electron","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.4.0"}]}]},{"source":"osv","ecosystem":"npm","package":"electron","ranges":[{"type":"SEMVER","events":[{"introduced":"10.0.0"},{"fixed":"10.2.0"}]}]},{"source":"osv","ecosystem":"npm","package":"electron","ranges":[{"type":"SEMVER","events":[{"introduced":"11.0.0"},{"fixed":"11.1.0"}]}]}],"products":[{"vendor":"electron","product":"electron"},{"vendor":"electronjs","product":"electron"}],"references":[{"url":"https://github.com/electron/electron/security/advisories/GHSA-hvf8-h2qh-37m9","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/electron/electron/pull/26875","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/electron/electron/commit/07a1c2a3e5845901f7e2eda9506695be58edc73c","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/electron/electron/commit/0bbd268eb4caf35604443df5ff196980dd49e208","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/electron/electron/commit/36c695ce2a7e22c07fe1e30c61c00d20371daee2","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/electron/electron/commit/429400040ecb16a21d19936658579e65a797e4cc","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/electron/electron/commit/5c8e7e8b7f485ceafa8b271086d7b87e1de9dedd","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/electron/electron/releases/tag/v9.4.0","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory","web"]},{"url":"https://www.electronjs.org/releases/stable?version=9#9.4.0","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26272","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-hvf8-h2qh-37m9"}],"sources":{"cve":[{"id":"CVE-2020-26272","title":"Electron vulnerable to ID collision when routing IPC messages to renderers containing OOPIFs","description":"The Electron framework lets users write cross-platform desktop applications using JavaScript, HTML and CSS. In versions of Electron IPC prior to 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9, messages sent from the main process to a subframe in the renderer process, through webContents.sendToFrame, event.reply or when using the remote module, can in some cases be delivered to the wrong frame. If your app uses remote, calls webContents.sendToFrame, or calls event.reply in an IPC message handler then it is impacted by this issue. This has been fixed in versions 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9. There are no known workarounds for this issue.","status":"published","published":"2021-01-28T18:25:17Z","modified":"2025-05-27T15:20:11.927Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:35:46.129376Z"}],"euvd":[{"id":"EUVD-2021-0507","description":"The Electron framework lets users write cross-platform desktop applications using JavaScript, HTML and CSS. In versions of Electron IPC prior to 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9, messages sent from the main process to a subframe in the renderer process, through webContents.sendToFrame, event.reply or when using the remote module, can in some cases be delivered to the wrong frame. If your app uses remote, calls webContents.sendToFrame, or calls event.reply in an IPC message handler then it is impacted by this issue. This has been fixed in versions 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9. There are no known workarounds for this issue.","status":"published","published":"2021-01-28T18:25:17Z","modified":"2025-05-27T15:20:11Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:38.348652Z"}],"ghsa":[{"id":"GHSA-hvf8-h2qh-37m9","title":"IPC messages delivered to the wrong frame in Electron","description":"### Impact\nIPC messages sent from the main process to a subframe in the renderer process, through `webContents.sendToFrame`, `event.reply` or when using the `remote` module, can in some cases be delivered to the wrong frame.\n\nIf your app does ANY of the following, then it is impacted by this issue:\n- Uses `remote`\n- Calls `webContents.sendToFrame`\n- Calls `event.reply` in an IPC message handler\n\n### Patches\nThis has been fixed in the following versions:\n\n- 9.4.0\n- 10.2.0\n- 11.1.0\n- 12.0.0-beta.9\n\n### Workarounds\nThere are no workarounds for this issue.\n\n### For more information\nIf you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org).","status":"published","published":"2021-01-28T19:11:34Z","modified":"2025-05-27T15:20:20Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:38:44.991725Z"}],"nvd":[{"id":"CVE-2020-26272","description":"The Electron framework lets users write cross-platform desktop applications using JavaScript, HTML and CSS. In versions of Electron IPC prior to 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9, messages sent from the main process to a subframe in the renderer process, through webContents.sendToFrame, event.reply or when using the remote module, can in some cases be delivered to the wrong frame. If your app uses remote, calls webContents.sendToFrame, or calls event.reply in an IPC message handler then it is impacted by this issue. This has been fixed in versions 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9. There are no known workarounds for this issue.","status":"published","published":"2021-01-28T19:15:13.003Z","modified":"2026-06-17T03:07:58.277Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:06:30.596418Z"}],"osv":[{"id":"CVE-2020-26272","description":"The Electron framework lets users write cross-platform desktop applications using JavaScript, HTML and CSS. In versions of Electron IPC prior to 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9, messages sent from the main process to a subframe in the renderer process, through webContents.sendToFrame, event.reply or when using the remote module, can in some cases be delivered to the wrong frame. If your app uses remote, calls webContents.sendToFrame, or calls event.reply in an IPC message handler then it is impacted by this issue. This has been fixed in versions 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9. There are no known workarounds for this issue.","status":"published","published":"2021-01-28T19:15:13.003Z","modified":"2026-10-20T14:08:50.090428231Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:16.248747Z"},{"id":"GHSA-hvf8-h2qh-37m9","title":"IPC messages delivered to the wrong frame in Electron","description":"### Impact\nIPC messages sent from the main process to a subframe in the renderer process, through `webContents.sendToFrame`, `event.reply` or when using the `remote` module, can in some cases be delivered to the wrong frame.\n\nIf your app does ANY of the following, then it is impacted by this issue:\n- Uses `remote`\n- Calls `webContents.sendToFrame`\n- Calls `event.reply` in an IPC message handler\n\n### Patches\nThis has been fixed in the following versions:\n\n- 9.4.0\n- 10.2.0\n- 11.1.0\n- 12.0.0-beta.9\n\n### Workarounds\nThere are no workarounds for this issue.\n\n### For more information\nIf you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org).","status":"published","published":"2021-01-28T19:11:34Z","modified":"2026-09-10T03:49:13.924733317Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T15:46:49.621585Z"}]}}