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Vulnerability record · CVE-2026-69857 · published 3 September 2026

CVE-2026-69857: Microsoft azure cosmos db insecure direct object reference vulnerability

Microsoft · Azure Cosmos Db

Authorization bypass through user-controlled key in Azure Cosmos DB allows an authorized attacker to perform spoofing over a network.

8.8 CVSS 3.1 High EPSS 0.63% · top 51.8% CWE-639 · Insecure direct object reference
8.8CVSS 3.1 base score
0.63%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
9 Sep 2026Last modified by NVD

Description

Authorization bypass through user-controlled key in Azure Cosmos DB allows an authorized attacker to perform spoofing over a network.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69857 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-66803Microsoft azure cosmos db improper access control vulnerabilityImproper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.EPSS 0.90%9.6CVE-2025-64675Microsoft azure cosmos db cross-site scripting vulnerabilityImproper neutralization of input during web page generation ('cross-site scripting') in Azure Cosmos DB allows an unauthorized attacker to perform sp…EPSS 0.71%8.4CVE-2026-55255Langflow IDOR in responses endpoint allows cross-user flow executionLangflow before 1.9.1 has an insecure direct object reference in the /api/v1/responses endpoint. An authenticated attacker can supply another user's …KEVEPSS 0.89%analysed

Source: NIST National Vulnerability Database (record CVE-2026-69857), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.