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A GitHub-reviewed security advisory, not necessarily under active exploitation the way our CISA KEV advisories are, but a real, disclosed vulnerability in an open-source dependency.
Affected packages
Vulnerable: >= 45.0.0-alpha.1, < 45.0.0-alpha.4
Patched in 45.0.0-alpha.4
Vulnerable: >= 44.0.0-alpha.1, < 44.1.1
Patched in 44.1.1
Vulnerable: >= 43.0.0-alpha.1, < 43.5.1
Patched in 43.5.1
Vulnerable: < 42.11.1
Patched in 42.11.1
Details
chrome.tabs.query() returned each tab's url and title to extensions that held neither the tabs permission nor matching host permissions, so any loaded extension could read the URL and title of every webContents in its session.
Apps are only affected if they load extensions (session.extensions.loadExtension) that they do not fully trust. Apps that load no extensions, or only trusted ones, are not affected.
Do not load untrusted or unvalidated extensions. In general you should only load trusted extensions.
45.0.0-alpha.444.1.143.5.142.11.1If you have any questions or comments about this advisory, email us at [email protected]
EPSS, exploit probability
Low0.49%
estimated chance of real-world exploitation in the next 30 days, higher than 40.9% of every CVE FIRST.org scores
Refreshed 10/22/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.
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A secure code review or supply chain review finds this before an advisory does.