Sensitive-data disclosure via reused buffers
Published Aug 11, 2026 · Updated Aug 25, 2026
Information disclosure in Microsoft Visual Studio Code before 1.132.1 allows remote attackers to read sensitive data via malicious extension or webview content. The vulnerable extension and webview data path reused internal buffers and exposed stale contents because it sent buffer-backed data onward without first copying only the intended range. Exploitation requires delivery of attacker-controlled extension or webview content to a user, and the disclosed data is bounded to sensitive bytes left in those reused buffers rather than arbitrary file read or code execution.
Summary
What happened
Information disclosure in Microsoft Visual Studio Code before 1.132.1 allows remote attackers to read sensitive data via malicious extension or webview content. The vulnerable extension and webview data path reused internal buffers and exposed stale contents because it sent buffer-backed data onward without first copying only the intended range. Exploitation requires delivery of attacker-controlled extension or webview content to a user, and the disclosed data is bounded to sensitive bytes left in those reused buffers rather than arbitrary file read or code execution.
The record
- CVE
- CVE-2026-47285
- Published
- Aug 11, 2026
- Updated
- Aug 25, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-77
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Public exploit references
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Technologies
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