CVE-2026-34775
CVE-2026-34775 is a medium-severity vulnerability in Electronjs Electron with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-653.
Key facts
- Severity: Medium (CVSS 3.x base score 6.8)
- EPSS exploit prediction: 0% (21st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-18949
- Weakness: CWE-653
- Affected product: Electronjs Electron
- Published:
- Last modified:
Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.4, 40.8.4, and 41.0.0, the nodeIntegrationInWorker webPreference was not correctly scoped in all configurations. In certain process-sharing scenarios, workers spawned in frames configured with nodeIntegrationInWorker: false could still receive Node.js integration. Apps are only affected if they enable nodeIntegrationInWorker. Apps that do not use nodeIntegrationInWorker are not affected. This issue has been patched in versions 38.8.6, 39.8.4, 40.8.4, and 41.0.0.
Frequently asked questions
- What is CVE-2026-34775?
- Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.4, 40.8.4, and 41.0.0, the nodeIntegrationInWorker webPreference was not correctly scoped in all configurations. In certain process-sharing scenarios, workers spawned in frames configured with nodeIntegrationInWorker: false could still receive Node.js integration. Apps are only affected if they enable nodeIntegrationInWorker. Apps that do not use nodeIntegrationInWorker are not affected. This issue has been patched in versions 38.8.6, 39.8.4, 40.8.4, and 41.0.0.
- How severe is CVE-2026-34775?
- CVE-2026-34775 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
- Is CVE-2026-34775 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-34775?
- CVE-2026-34775 primarily affects Electronjs Electron. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-34775?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-34775 have an EU (EUVD) identifier?
- Yes. CVE-2026-34775 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18949.
- When was CVE-2026-34775 published?
- CVE-2026-34775 was published on 2026-04-04 and last updated on 2026-06-17.
References
Affected products (15)
- cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:alpha1:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:alpha2:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:alpha3:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:alpha4:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:alpha5:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:alpha6:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:beta1:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:beta2:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:beta3:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:beta4:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:beta5:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:beta6:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:beta7:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:41.0.0:beta8:*:*:*:node.js:*:*
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