Site isolation bypass via invalid navigation input
Published Aug 25, 2026 · Updated Aug 25, 2026
Improper input validation in Google Chrome before 152.0.7977.65 allows remote attackers to bypass site isolation via crafted HTML. Chrome's Navigation component accepts crafted page input without sufficient validation, but Google has not disclosed the specific field, validation error, or code path. Exploitation requires user interaction with the page and prior compromise of a renderer process; the isolation bypass exposes data across a browser security boundary.
Summary
What happened
Improper input validation in Google Chrome before 152.0.7977.65 allows remote attackers to bypass site isolation via crafted HTML. Chrome's Navigation component accepts crafted page input without sufficient validation, but Google has not disclosed the specific field, validation error, or code path. Exploitation requires user interaction with the page and prior compromise of a renderer process; the isolation bypass exposes data across a browser security boundary.
The record
- CVE
- CVE-2026-79066
- Published
- Aug 25, 2026
- Updated
- Aug 25, 2026
- Vendor
- Google Cloud
- Product
- Google Chrome
- Classifications
- CWE-20, T1211
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 25, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=152.0.7977.65 <152.0.7977.65
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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