Sensitive-data disclosure via Autofill observable discrepancy
Published Sep 9, 2026 · Updated Sep 9, 2026
Observable discrepancy in Autofill in Google Chrome before 153.0.8010.36 allows remote attackers to read sensitive data via crafted HTML. Google has not disclosed the exact Autofill behavior that creates the observable difference or which stored fields can be inferred. Exploitation requires a user to load attacker-controlled HTML, and the published impact is limited to sensitive-information disclosure.
Summary
What happened
Observable discrepancy in Autofill in Google Chrome before 153.0.8010.36 allows remote attackers to read sensitive data via crafted HTML. Google has not disclosed the exact Autofill behavior that creates the observable difference or which stored fields can be inferred. Exploitation requires a user to load attacker-controlled HTML, and the published impact is limited to sensitive-information disclosure.
The record
- CVE
- CVE-2026-87478
- Published
- Sep 9, 2026
- Updated
- Sep 9, 2026
- Vendor
- Google Cloud
- Product
- Google Chrome
- Classifications
- CWE-203, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 9, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 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=153.0.8010.36 <153.0.8010.36
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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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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