Cross-origin data disclosure via uninitialized WebGL resource
Published Sep 9, 2026 · Updated Sep 9, 2026
Use of an uninitialized resource in Google Chrome's WebGL implementation before 153.0.8010.36 allows remote attackers to leak cross-origin data. WebGL exposes data from a resource before initializing it, allowing prior contents to cross an origin boundary; Google has not disclosed the exact resource or code path. The attacker must cause a crafted HTML page to load; the reported consequence is data disclosure, not modification or service interruption.
Summary
What happened
Use of an uninitialized resource in Google Chrome's WebGL implementation before 153.0.8010.36 allows remote attackers to leak cross-origin data. WebGL exposes data from a resource before initializing it, allowing prior contents to cross an origin boundary; Google has not disclosed the exact resource or code path. The attacker must cause a crafted HTML page to load; the reported consequence is data disclosure, not modification or service interruption.
The record
- CVE
- CVE-2026-87642
- Published
- Sep 9, 2026
- Updated
- Sep 9, 2026
- Vendor
- Google Cloud
- Product
- Google Chrome
- Classifications
- CWE-908, 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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