What is CVE-2026-69857?

CVE-2026-69857 is a high-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.5/10. Published 2026-09-03.

How severe is CVE-2026-69857?

High severity. CVSS v3 base score is 8.5 out of 10.

CVE-2026-69857

CVE-2026-69857

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

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

secure@microsoft.com

Frequently asked questions

What is CVE-2026-69857?: CVE-2026-69857 is a high-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.5/10. Published 2026-09-03.
How severe is CVE-2026-69857?: High severity. CVSS v3 base score is 8.5 out of 10.