Process-memory disclosure via Extensions heap over-read
Published Jun 4, 2026 · Updated Jun 4, 2026
Out-of-bounds read in Google Chrome Extensions on Linux before 149.0.7827.53 allows attackers to read process memory via a crafted extension. The Extensions component reads beyond a heap buffer while processing attacker-controlled extension data; Google has not disclosed the affected function or operation. Exploitation requires a user to install the malicious extension, and the documented consequence is potentially sensitive information disclosure rather than modification or service interruption.
Summary
What happened
Out-of-bounds read in Google Chrome Extensions on Linux before 149.0.7827.53 allows attackers to read process memory via a crafted extension. The Extensions component reads beyond a heap buffer while processing attacker-controlled extension data; Google has not disclosed the affected function or operation. Exploitation requires a user to install the malicious extension, and the documented consequence is potentially sensitive information disclosure rather than modification or service interruption.
The record
- CVE
- CVE-2026-11143
- Published
- Jun 4, 2026
- Updated
- Jun 4, 2026
- Vendor
- Go standard library
- Product
- Google Chrome
- Classifications
- CWE-122, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 4, 2026CVE publishedPublication date reported by the CVE source.
- Jun 4, 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=149.0.7827.53 <149.0.7827.53
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
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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