{"id":"CVE-2021-39184","details":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. A vulnerability in versions prior to 11.5.0, 12.1.0, and 13.3.0 allows a sandboxed renderer to request a \"thumbnail\" image of an arbitrary file on the user's system. The thumbnail can potentially include significant parts of the original file, including textual data in many cases. Versions 15.0.0-alpha.10, 14.0.0, 13.3.0, 12.1.0, and 11.5.0 all contain a fix for the vulnerability. Two workarounds aside from upgrading are available. One may make the vulnerability significantly more difficult for an attacker to exploit by enabling `contextIsolation` in one's app. One may also disable the functionality of the `createThumbnailFromPath` API if one does not need it.","aliases":["GHSA-mpjm-v997-c4h4"],"modified":"2026-08-07T11:31:19.656338387Z","published":"2021-10-12T19:15:07.987Z","database_specific":{"unresolved_ranges":[{"vendor_product":"electronjs:electron","cpes":["cpe:2.3:a:electronjs:electron:14.0.0:beta10:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta11:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta12:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta13:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta14:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta15:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta16:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta17:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta18:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta19:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta1:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta20:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta21:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta22:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta23:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta24:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta25:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta2:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta3:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta4:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta5:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta6:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta7:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta8:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:14.0.0:beta9:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:15.0.0:alpha1:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:15.0.0:alpha2:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:15.0.0:alpha3:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:15.0.0:alpha4:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:15.0.0:alpha5:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:15.0.0:alpha6:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:15.0.0:alpha7:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:15.0.0:alpha8:*:*:*:*:*:*","cpe:2.3:a:electronjs:electron:15.0.0:alpha9:*:*:*:*:*:*"],"extracted_events":[{"introduced":"14.0.0-beta1"},{"last_affected":"14.0.0-beta1"},{"introduced":"14.0.0-beta10"},{"last_affected":"14.0.0-beta10"},{"introduced":"14.0.0-beta11"},{"last_affected":"14.0.0-beta11"},{"introduced":"14.0.0-beta12"},{"last_affected":"14.0.0-beta12"},{"introduced":"14.0.0-beta13"},{"last_affected":"14.0.0-beta13"},{"introduced":"14.0.0-beta14"},{"last_affected":"14.0.0-beta14"},{"introduced":"14.0.0-beta15"},{"last_affected":"14.0.0-beta15"},{"introduced":"14.0.0-beta16"},{"last_affected":"14.0.0-beta16"},{"introduced":"14.0.0-beta17"},{"last_affected":"14.0.0-beta17"},{"introduced":"14.0.0-beta18"},{"last_affected":"14.0.0-beta18"},{"introduced":"14.0.0-beta19"},{"last_affected":"14.0.0-beta19"},{"introduced":"14.0.0-beta2"},{"last_affected":"14.0.0-beta2"},{"introduced":"14.0.0-beta20"},{"last_affected":"14.0.0-beta20"},{"introduced":"14.0.0-beta21"},{"last_affected":"14.0.0-beta21"},{"introduced":"14.0.0-beta22"},{"last_affected":"14.0.0-beta22"},{"introduced":"14.0.0-beta23"},{"last_affected":"14.0.0-beta23"},{"introduced":"14.0.0-beta24"},{"last_affected":"14.0.0-beta24"},{"introduced":"14.0.0-beta25"},{"last_affected":"14.0.0-beta25"},{"introduced":"14.0.0-beta3"},{"last_affected":"14.0.0-beta3"},{"introduced":"14.0.0-beta4"},{"last_affected":"14.0.0-beta4"},{"introduced":"14.0.0-beta5"},{"last_affected":"14.0.0-beta5"},{"introduced":"14.0.0-beta6"},{"last_affected":"14.0.0-beta6"},{"introduced":"14.0.0-beta7"},{"last_affected":"14.0.0-beta7"},{"introduced":"14.0.0-beta8"},{"last_affected":"14.0.0-beta8"},{"introduced":"14.0.0-beta9"},{"last_affected":"14.0.0-beta9"},{"introduced":"15.0.0-alpha1"},{"last_affected":"15.0.0-alpha1"},{"introduced":"15.0.0-alpha2"},{"last_affected":"15.0.0-alpha2"},{"introduced":"15.0.0-alpha3"},{"last_affected":"15.0.0-alpha3"},{"introduced":"15.0.0-alpha4"},{"last_affected":"15.0.0-alpha4"},{"introduced":"15.0.0-alpha5"},{"last_affected":"15.0.0-alpha5"},{"introduced":"15.0.0-alpha6"},{"last_affected":"15.0.0-alpha6"},{"introduced":"15.0.0-alpha7"},{"last_affected":"15.0.0-alpha7"},{"introduced":"15.0.0-alpha8"},{"last_affected":"15.0.0-alpha8"},{"introduced":"15.0.0-alpha9"},{"last_affected":"15.0.0-alpha9"}],"source":"CPE_STRING"}]},"references":[{"type":"ADVISORY","url":"https://github.com/electron/electron/pull/30728"},{"type":"ADVISORY","url":"https://github.com/electron/electron/security/advisories/GHSA-mpjm-v997-c4h4"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/electron/electron","events":[{"introduced":"1c3ebfdc30ab89b7a36acb16c964bdcb604c5730"},{"fixed":"3d0705d81fd8b829372a732577b5c275352a9da6"},{"introduced":"3ae63c9a06a4b5c9074572ee8b7137520fe4ba4e"},{"fixed":"ea234f9cb991bfbb0bd4bff7bdf7aba2dd726dfb"},{"introduced":"3651c0411f25def02573a29116f34dbf1d4f0508"},{"fixed":"5771f38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