CVE-2026-114122 electron CVE debrief

Who should care

Electron developers and maintainers, as well as organizations using Electron-based applications, should assess exposure and prioritize updating to patched versions. They should review usage of `webContents.beginFrameSubscription` and assess exposure. Security teams and vulnerability management teams should also be aware of the potential impact and prioritize remediation efforts.

Why it matters

CVE-2026-114122 is a vulnerability in Electron's frame subscription feature that could allow a compromised GPU process to disclose memory or crash the app. Electron developers and maintainers should assess exposure and prioritize updating to patched versions.

• Memory disclosure or app crashes due to out-of-bounds memory reads.
• Potential for code execution in the GPU process to be used as a vector for further exploitation.
• Need for verification of `webContents.beginFrameSubscription` usage and exposure.
• Priority on updating to patched versions to prevent exploitation.

Technical summary

The vulnerability in Electron's frame subscription feature allows a compromised GPU process to cause the main process to read out-of-bounds memory while producing captured frame images, disclosing memory or crashing the app. Apps are only affected if they use `webContents.beginFrameSubscription` and an attacker has separately gained code execution in the GPU process. The vulnerability is related to the trust of GPU-supplied frame geometry. The main process reads captured frame images without fully validating the frame data received from the GPU process.

Defensive priority

Electron developers and maintainers should assess exposure and prioritize updating to patched versions.

Recommended defensive actions

• Update to a patched version of Electron: 45.0.0-alpha.9, 44.4.3, 43.7.3, or 42.11.6.
• Review usage of `webContents.beginFrameSubscription` and assess exposure.
• Monitor for suspicious GPU process activity.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The source corpus provides details on the vulnerability in Electron's frame subscription feature, which trusts GPU-supplied frame geometry. A compromised GPU process could cause the main process to read out-of-bounds memory while producing captured frame images, disclosing memory or crashing the app. Apps are only affected if they use `webContents.beginFrameSubscription` and an attacker has separately gained code execution in the GPU process.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.