Azure Cosmos DB Remote Code Execution Vulnerability
Priority MEDIUM 51CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.
Summary
Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00901 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Remote Code Execution
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
Timeline
- 2026-10-02 Threatist record created from CVE-2026-66803
- 2026-10-03 Alias added: GHSA-ww36-75qc-rhmx
References
More Microsoft Azure Cosmos Db vulnerabilities
- TI-2026-59879 Azure Cosmos DB Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.6
- TI-2025-40030 Azure Cosmos DB Spoofing Vulnerability CVSS 3.1CRITICAL 9.6
- TI-2026-49080 Azure Cosmos DB Spoofing Vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2026-66803 · CVE Program
- CVE-2026-66803 · NVD
- FIRST EPSS
- GHSA-ww36-75qc-rhmx · GitHub Advisory Database · CC BY 4.0
- CVE-2026-66803 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences