Recorded 21 Oct 2026 at 21:47 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.
Azure HDInsight Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Azure HDInsight allows an unauthorized attacker to disclose information over a network.
What it said
- CVE
- CVE-2026-85891
- Severity
- Important
- CVSS base score
- 7.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
- Impact
- Information Disclosure
- Exploitation detected
- Not reported by MSRC
- Publicly disclosed
- No
- Exploitability
- Not assessed
- Component
- Azure HDInsight
- Weakness
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- Issued by
- Microsoft
- Customer action
- Required: apply the update
- Affected products
- Azure HDInsight
- Updates that fix it
- No KB listed
- CISA KEV
- Not listed in the collected catalog
- EPSS
- 0.9%; scored 21 Oct 2026
- Public exploit code
- No Nuclei template listed
- Published
- 13 Oct 2026 07:00 UTC
- Last revised
- 13 Oct 2026 07:00 UTC
- Revision note
- Information published.
Recorded links
Source evidence when recorded
- Microsoft security releases
- Complete at observationRead 21 Oct 2026 at 21:46 UTC
- CISA KEV
- Complete at observationRead 21 Oct 2026 at 21:46 UTC
- FIRST EPSS
- Complete at observationRead 21 Oct 2026 at 21:46 UTC
- Public exploit code
- Complete at observationRead 21 Oct 2026 at 21:46 UTC
Coverage describes the sources at this observation. A complete read then does not establish their current position.
What changed
First observed 14 Oct 2026- 21 Oct 2026 · 21:47:24 UTC EPSS0.9%; scored 20 Oct 2026 → 0.9%; scored 21 Oct 2026
- 20 Oct 2026 · 20:53:31 UTC EPSS0.9%; scored 19 Oct 2026 → 0.9%; scored 20 Oct 2026
- 19 Oct 2026 · 15:12:40 UTC EPSS0.9%; scored 18 Oct 2026 → 0.9%; scored 19 Oct 2026
- 18 Oct 2026 · 14:54:30 UTC EPSS0.9%; scored 16 Oct 2026 → 0.9%; scored 18 Oct 2026
- 18 Oct 2026 · 14:54:30 UTC Link: October 2026/security?release=2026-Oct#cves
- 16 Oct 2026 · 16:13:25 UTC EPSS0.9%; scored 15 Oct 2026 → 0.9%; scored 16 Oct 2026
- 15 Oct 2026 · 21:30:54 UTC EPSS0.9%; scored 14 Oct 2026 → 0.9%; scored 15 Oct 2026
- 15 Oct 2026 · 01:07:54 UTC EPSSNot scored → 0.9%; scored 14 Oct 2026
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