Summary
Workarounds
There are no workarounds for this issue.
For more information
If you have any questions or comments about this advisory, email us at [email protected].
Impact
IPC 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 does ANY of the following, then it is impacted by this issue:
- Uses
remote - Calls
webContents.sendToFrame - Calls
event.replyin an IPC message handler
CVE-2020-26272 has a CVSS score of 5.4 (Medium). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (9.4.0, 10.2.0, 11.1.0); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
This has been fixed in the following versions:
- 9.4.0
- 10.2.0
- 11.1.0
- 12.0.0-beta.9
Frequently Asked Questions
- What is CVE-2020-26272? CVE-2020-26272 is a medium-severity security vulnerability in electron (npm), affecting versions < 9.4.0. It is fixed in 9.4.0, 10.2.0, 11.1.0.
- How severe is CVE-2020-26272? CVE-2020-26272 has a CVSS score of 5.4 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of electron are affected by CVE-2020-26272? electron (npm) versions < 9.4.0 is affected.
- Is there a fix for CVE-2020-26272? Yes. CVE-2020-26272 is fixed in 9.4.0, 10.2.0, 11.1.0. Upgrade to this version or later.
- Is CVE-2020-26272 exploitable, and should I be worried? Whether CVE-2020-26272 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2020-26272 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2020-26272?
- Upgrade
electronto 9.4.0 or later - Upgrade
electronto 10.2.0 or later - Upgrade
electronto 11.1.0 or later
- Upgrade