Cross-origin data disclosure via unvalidated network traffic
Published Jul 30, 2026 · Updated Jul 30, 2026
Improper input validation in Google Chrome Cast before 151.0.7922.72 allows attackers on the local network segment to leak cross-origin data. Google has not disclosed which Cast input parser or validation check accepts the malicious network traffic. Reachability requires access to the same local network segment, and the reported consequence is limited to cross-origin data disclosure.
Summary
What happened
Improper input validation in Google Chrome Cast before 151.0.7922.72 allows attackers on the local network segment to leak cross-origin data. Google has not disclosed which Cast input parser or validation check accepts the malicious network traffic. Reachability requires access to the same local network segment, and the reported consequence is limited to cross-origin data disclosure.
The record
- CVE
- CVE-2026-17844
- Published
- Jul 30, 2026
- Updated
- Jul 30, 2026
- Vendor
- Go standard library
- Product
- Google Chrome
- Classifications
- CWE-20
- Attack vector
- adjacent
- 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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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