CVE-2020-26272

Electron vulnerable to ID collision when routing IPC messages to renderers containing OOPIFs

MEDIUM
6.5
CVSS Score
Published: January 28, 2021 at 06:25 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
2 products affected across 2 vendorsElectronElectron

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%

Description

The Electron framework lets users write cross-platform desktop applications using JavaScript, HTML and CSS. In versions of Electron IPC prior to 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9, messages sent from the main process to a subframe in the renderer process, through webContents.sendToFrame, event.reply or when using the remote module, can in some cases be delivered to the wrong frame. If your app uses remote, calls webContents.sendToFrame, or calls event.reply in an IPC message handler then it is impacted by this issue. This has been fixed in versions 9.4.0, 10.2.0, 11.1.0, and 12.0.0-beta.9. There are no known workarounds for this issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 10.2.0v < 11.1.0v < 9.4.0
Affected range stops below 10.2.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.1.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.4.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-668

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