{"id":"CVE-2026-114124","aliases":["GHSA-h3v5-h239-pg29"],"url":"https://o3.security/vulnerability/CVE-2026-114124","summary":"Electron: Off-screen rendering on macOS trusts GPU-supplied frame geometry","details":"### Impact\nIn offscreen rendering mode on macOS, frame data received from the GPU process was not fully validated by the main process. A compromised GPU process could cause the main process to read out-of-bounds memory while producing `paint` event images, disclosing memory or crashing the app. GHSA-pfmc-3mgc-p6fp covers the same issue on the other capture paths.\n\nApps are only affected if they use offscreen rendering (`webPreferences.offscreen`) on macOS and an attacker has separately gained code execution in the GPU process. Apps that do not use offscreen rendering are not affected.\n\n### Workarounds\nThere are no app side workarounds, you must update to a patched version of Electron.\n\n### Fixed Versions\n* `45.0.0-alpha.9`\n* `44.4.3`\n* `43.7.3`\n* `42.11.6`\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)","published":"2026-10-21T17:03:26.765Z","modified":"2026-10-24T02:48:25.789954086Z","cvss":{"score":3.9,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"electron","fixedVersion":"42.11.6"},{"ecosystem":"npm","name":"electron","fixedVersion":"43.7.3"},{"ecosystem":"npm","name":"electron","fixedVersion":"44.4.3"},{"ecosystem":"npm","name":"electron","fixedVersion":"45.0.0-alpha.9"}],"fix":{"url":"https://github.com/electron/electron/commit/24d8dbc661c6a109476ae59e9a2740b35d005cf4","label":"electron/electron@24d8dbc"},"references":[{"type":"WEB","url":"https://github.com/electron/electron/releases/tag/v42.11.6"},{"type":"WEB","url":"https://github.com/electron/electron/releases/tag/v43.7.3"},{"type":"WEB","url":"https://github.com/electron/electron/releases/tag/v44.4.3"},{"type":"WEB","url":"https://github.com/electron/electron/releases/tag/v45.0.0-alpha.9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114124.json"},{"type":"ADVISORY","url":"https://github.com/electron/electron/security/advisories/GHSA-h3v5-h239-pg29"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114124"},{"type":"FIX","url":"https://github.com/electron/electron/commit/24d8dbc661c6a109476ae59e9a2740b35d005cf4"},{"type":"FIX","url":"https://github.com/electron/electron/commit/64ae597deda8956037387b439e6361f0fe936c86"},{"type":"FIX","url":"https://github.com/electron/electron/commit/8d48be150c3fd53b0d02854124bdb7858598799c"},{"type":"FIX","url":"https://github.com/electron/electron/commit/d496507ffa1693edaa704a4be130fbcb8ecb4ada"},{"type":"FIX","url":"https://github.com/electron/electron/commit/d7f87070a8d738e561245d1ade4d6fbb082db80a"},{"type":"FIX","url":"https://github.com/electron/electron/pull/54033"},{"type":"FIX","url":"https://github.com/electron/electron/pull/54036"},{"type":"FIX","url":"https://github.com/electron/electron/pull/54037"},{"type":"FIX","url":"https://github.com/electron/electron/pull/54038"},{"type":"FIX","url":"https://github.com/electron/electron/pull/54047"},{"type":"PACKAGE","url":"https://github.com/electron/electron"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T02:48:25.789954086Z"}}