CVE-2026-87701CWE-74

CVE-2026-87701

Critical · published September 18, 2026

CVSS v3.1
9.6
EPSS
1%
Percentile
55.8
In the wild
Unconfirmed
What it is

Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Cosmos DB allows an authorized attacker to elevate privileges over a network.

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00789 · 55.8th percentile
Weakness
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Published
2026-09-18T03:18Z
Affected products (1)
ProductVersionsFixed in
microsoft/azure_cosmos_dball versions—
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-87701 · [email protected]
EPSS history
Timeline
  • 19 SEP 03:54Z
    EPSS moved — → 0%
    epss
  • 17 SEP 22:55Z
    Azure Cosmos DB Elevation of Privilege Vulnerability
    cvelistv5