Azure HDInsight exposes sensitive information to attackers
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
Azure HDInsight from 1.0 before 2606012120 exposes sensitive information to unauthorized actors. A remote attacker with no privileges and no user interaction can disclose that information over the network, with high confidentiality impact. The weakness is CWE-200.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Exposure of sensitive information to an unauthorized actor in Azure HDInsight allows an unauthorized attacker to disclose information over a network.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update Azure HDInsight to version 2606012120, the fixed version listed for this product.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA Azure HDInsight (Microsoft) Fixed in 2606012120
Timeline
- 2026-10-13 Threatist record created from CVE-2026-85891
- 2026-10-13 Alias added: GHSA-v4fc-vf8c-cw22
References
More Microsoft vulnerabilities
- TI-2026-42212 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2026-37256 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2026-16982 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2025-36863 Windows Server Update Service (WSUS) Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2025-33671 Microsoft SharePoint Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-85891 · CVE Program
- CVE-2026-85891 · NVD
- FIRST EPSS
- GHSA-v4fc-vf8c-cw22 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences