Site-isolation bypass via Worker lifetime mismanagement
Published Aug 25, 2026 · Updated Aug 25, 2026
Resource-lifetime mismanagement in Google Chrome Workers before 152.0.7977.65 allows remote attackers to bypass site isolation. Google has not disclosed the specific Worker resource or the lifetime operation that mishandles it. Exploitation requires a previously compromised renderer and crafted HTML, so the flaw crosses a browser isolation boundary rather than independently compromising the renderer.
Summary
What happened
Resource-lifetime mismanagement in Google Chrome Workers before 152.0.7977.65 allows remote attackers to bypass site isolation. Google has not disclosed the specific Worker resource or the lifetime operation that mishandles it. Exploitation requires a previously compromised renderer and crafted HTML, so the flaw crosses a browser isolation boundary rather than independently compromising the renderer.
The record
- CVE
- CVE-2026-79289
- Published
- Aug 25, 2026
- Updated
- Aug 25, 2026
- Vendor
- Google Cloud
- Product
- Google Chrome
- Classifications
- CWE-664
- 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?
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- Affected versionversion=152.0.7977.65 <152.0.7977.65
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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