Cross-origin data disclosure via Autofill side channel
Published Jul 30, 2026 · Updated Jul 30, 2026
Side-channel leakage in Google Chrome Autofill before 151.0.7922.72 allows remote attackers with a compromised renderer to read cross-origin data. Google has not disclosed the Autofill operation that exposes the data or the observable signal used to infer it. Exploitation requires a compromised renderer and interaction with crafted HTML; the reported consequence is limited to cross-origin data disclosure.
Summary
What happened
Side-channel leakage in Google Chrome Autofill before 151.0.7922.72 allows remote attackers with a compromised renderer to read cross-origin data. Google has not disclosed the Autofill operation that exposes the data or the observable signal used to infer it. Exploitation requires a compromised renderer and interaction with crafted HTML; the reported consequence is limited to cross-origin data disclosure.
The record
- CVE
- CVE-2026-17851
- Published
- Jul 30, 2026
- Updated
- Jul 30, 2026
- Vendor
- Go standard library
- Product
- Google Chrome
- Classifications
- CWE-1300
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 30, 2026CVE publishedPublication date reported by the CVE source.
- Jul 30, 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=151.0.7922.72 <151.0.7922.72
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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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