Vulnerability · Published Sep 3, 2026 · Assigned by microsoft
CVE-2026-69857Azure Cosmos DB Spoofing Vulnerability
High 8.5
In plain English
A high-severity authorization bypass via user-controlled key in Azure Cosmos DB from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS 3.1)8.5High
Exploit odds (30 days)0.6%top 49.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Authorization bypass through user-controlled key in Azure Cosmos DB allows an authorized attacker to perform spoofing over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Azure Cosmos DB | - |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Azure Cosmos DB Spoofing Vulnerability vendor-advisory, patch