CVE-2026-87701 Azure Cosmos DB - Privilege Escalation

Azure Cosmos DB contains a privilege escalation caused by improper neutralization of special elements in output used by a downstream component, letting authorized attackers elevate privileges over a network, exploit requires attacker authorization.

CVSS base score 9.6 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.79% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Published
17 September 2026
Updated
15 October 2026
Weakness
CWE-74

Vendor fix

Update to the latest version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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