Unauthenticated information disclosure requiring user interaction
Published Jan 22, 2026 · Updated Jan 22, 2026
Information disclosure in Microsoft Azure Data Explorer allows remote attackers to read sensitive information through network requests. Microsoft has not published the affected component, triggering input, or operation that exposes the data. Exploitation requires user interaction but no attacker privileges, and the documented consequence excludes data alteration and service interruption.
Summary
What happened
Information disclosure in Microsoft Azure Data Explorer allows remote attackers to read sensitive information through network requests. Microsoft has not published the affected component, triggering input, or operation that exposes the data. Exploitation requires user interaction but no attacker privileges, and the documented consequence excludes data alteration and service interruption.
The record
- CVE
- CVE-2026-21524
- Published
- Jan 22, 2026
- Updated
- Jan 22, 2026
- Vendor
- Microsoft
- Product
- Azure Data Explorer
- Classifications
- CWE-200
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 22, 2026CVE publishedPublication date reported by the CVE source.
- Jan 22, 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=-
What conditions does exploitation require?
What is affected?
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
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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