Site-isolation bypass via unvalidated Passwords input
Published Jul 30, 2026 · Updated Jul 30, 2026
Improper input validation in Passwords in Google Chrome before 151.0.7922.72 allows remote attackers to bypass site isolation via crafted HTML. Google identifies the Passwords component but has not publicly disclosed the validation locus or the untrusted value accepted from the crafted page. Exploitation requires prior renderer compromise and user interaction with the page; the reported consequence is escape from site-isolation boundaries, not browser-host code execution.
Summary
What happened
Improper input validation in Passwords in Google Chrome before 151.0.7922.72 allows remote attackers to bypass site isolation via crafted HTML. Google identifies the Passwords component but has not publicly disclosed the validation locus or the untrusted value accepted from the crafted page. Exploitation requires prior renderer compromise and user interaction with the page; the reported consequence is escape from site-isolation boundaries, not browser-host code execution.
The record
- CVE
- CVE-2026-17686
- Published
- Jul 30, 2026
- Updated
- Jul 30, 2026
- Vendor
- Go standard library
- Product
- Google Chrome
- Classifications
- CWE-20, T1203
- 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
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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