npm/electron CVE-2026-54257: critical, EPSS 0.43%
Electron: Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow
Action: Upgrade electron to 42.3.3 or later.
npm i electron@42.3.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 42.3.1 | 42.3.3 | - |
Fixed versions
| 42.3.3 |
Sources
- osv: GHSA-q6m5-f73j-m9mc
- https://github.com/electron/electron/security/advisories/GHSA-q6m5-f73j-m9mc
- https://nvd.nist.gov/vuln/detail/CVE-2026-54257
- https://github.com/electron/electron
CVE-2026-54257 · published · modified · JSON