{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-54257/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-23T17:47:47.594Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-54257","@id":"https://www.cve.org/CVERecord?id=CVE-2026-54257","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.1 until 42.3.3, Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow. Most apps will crash and some may perform incorrect buffer allocations in the Node.js Buffer API resulting in unexpected truncation or allocation. This vulnerability is fixed in 42.3.3."},"products":[{"@id":"cpe:2.3:a:electron:electron:\\>\\=_42.3.1\\,_\\<_42.3.3:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:electron:electron:\\>\\=_42.3.1\\,_\\<_42.3.3:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"No fixed version is published yet; monitor the upstream advisory.","timestamp":"2026-06-23T17:47:47.594Z"}]}