Cross-site data disclosure after renderer compromise
Published Aug 25, 2026 · Updated Aug 25, 2026
Information leak in Google Chrome Core before 152.0.7977.65 allows remote attackers to bypass Site Isolation via crafted HTML. Google has not disclosed the internal Core locus or the operation that improperly exposes data across the Site Isolation boundary. Exploitation requires an already compromised renderer process; the flaw extends that compromise across isolated sites but has no reported integrity or availability impact.
Summary
What happened
Information leak in Google Chrome Core before 152.0.7977.65 allows remote attackers to bypass Site Isolation via crafted HTML. Google has not disclosed the internal Core locus or the operation that improperly exposes data across the Site Isolation boundary. Exploitation requires an already compromised renderer process; the flaw extends that compromise across isolated sites but has no reported integrity or availability impact.
The record
- CVE
- CVE-2026-78941
- Published
- Aug 25, 2026
- Updated
- Aug 25, 2026
- Vendor
- Google Cloud
- Product
- Google Chrome
- Classifications
- CWE-200
- Attack vector
- network
- Privileges
- Unavailable
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
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
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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