CVE-2026-85878: CWE-285: Improper Authorization in Microsoft Azure HorizonDB
Improper authorization in Azure Database for PostgreSQL allows an authorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
This vulnerability (CWE-285) in Azure HorizonDB involves improper authorization that enables an authorized attacker to escalate privileges remotely. The flaw affects the Azure Database for PostgreSQL service and can be exploited over the network without user interaction. The CVSS 3.1 vector indicates low attack complexity, privileges required are low, and the impact is critical across confidentiality, integrity, and availability. Microsoft has released an official fix and manages remediation for this cloud-hosted service.
Potential Impact
An attacker with authorized access can elevate their privileges, potentially gaining full control over the affected Azure HorizonDB instance. This can lead to complete compromise of data confidentiality, integrity, and availability within the database service.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. As this is a cloud-hosted service, Microsoft manages the remediation process server-side. Users should verify with Microsoft’s advisory that their Azure HorizonDB instances have been updated accordingly. No additional user action is required beyond ensuring the service is up to date per vendor guidance.
CVE-2026-85878: CWE-285: Improper Authorization in Microsoft Azure HorizonDB
Description
Improper authorization in Azure Database for PostgreSQL allows an authorized attacker to elevate privileges over a network.
CVSS v3.1
Score 9.9critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-285) in Azure HorizonDB involves improper authorization that enables an authorized attacker to escalate privileges remotely. The flaw affects the Azure Database for PostgreSQL service and can be exploited over the network without user interaction. The CVSS 3.1 vector indicates low attack complexity, privileges required are low, and the impact is critical across confidentiality, integrity, and availability. Microsoft has released an official fix and manages remediation for this cloud-hosted service.
Potential Impact
An attacker with authorized access can elevate their privileges, potentially gaining full control over the affected Azure HorizonDB instance. This can lead to complete compromise of data confidentiality, integrity, and availability within the database service.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. As this is a cloud-hosted service, Microsoft manages the remediation process server-side. Users should verify with Microsoft’s advisory that their Azure HorizonDB instances have been updated accordingly. No additional user action is required beyond ensuring the service is up to date per vendor guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-04T18:18:19.325Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Gcve Source
- db.gcve.eu
Threat ID: 6aac8d5155bf5e2cf547428a
Added to database: 09/18/2026, 01:01:05 UTC
Last enriched: 09/18/2026, 01:06:51 UTC
Last updated: 09/18/2026, 02:01:30 UTC
Views: 4
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