Description

Server-side request forgery (ssrf) in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "10.0",
  "pubDate": "2026-08-21T16:18:07.090Z",
  "pubdate": "2026-08-21T16:18:07.090Z",
  "executiveSummary": "A Server-Side Request Forgery (SSRF) vulnerability has been identified within Azure SQL Database. This security flaw enables an unauthorized threat actor to execute unauthorized network requests originating from the vulnerable database infrastructure, ultimately resulting in privilege escalation over the network.\nThe vulnerability affects Azure SQL Database deployments, exposing the underlying architecture to remote manipulation. By exploiting this SSRF vector, an attacker with network access can bypass standard security boundaries and interact with internal endpoints or external services that are normally inaccessible.\nThe risk implications are severe, as successful exploitation grants the adversary the capability to elevate privileges within the targeted environment, potentially leading to unauthorized data access, lateral movement, or compromise of adjacent cloud resources.\nExploitation requires network connectivity to the affected database service and the ability to trigger outbound requests through vulnerable database functionalities. The attacker operates without prior authentication, leveraging the SSRF flaw to abuse the trust relationship of the server-side application logic.\nMitigation requires applying vendor-supplied updates and hardening network configurations to restrict unauthorized outbound traffic from the database infrastructure.",
  "technicalDetails": "The root cause of the vulnerability stems from improper input validation and handling of user-supplied URLs or network identifiers within the Azure SQL Database service. When the application processes crafted requests containing arbitrary URIs, it fails to adequately sanitize or restrict the destination, allowing the injection of malicious routing data.\nThe vulnerable component resides in the network request handling subsystem of Azure SQL Database, which processes backend calls to external or internal resources. This component lacks sufficient URI parsing controls and egress filtering, making it susceptible to Server-Side Request Forgery attacks.\nExploitation occurs without authentication and requires minimal privilege levels, categorized as an unauthorized attack vector. The attack surface is exposed over the network, permitting remote threat actors to interact with the service endpoint.\nThe attack flow proceeds as follows: First, the attacker formulates a malicious payload containing a targeted internal or external URI designed to probe restricted services or force unintended data retrieval. Second, the adversary transmits this crafted request to the vulnerable Azure SQL Database instance over the network. Third, the database service processes the input and initiates an outbound HTTP or network request to the specified destination on behalf of the application.\nBecause the request originates from the trusted database server IP address, it bypasses perimeter firewalls and network segmentation controls designed to protect internal metadata services, management APIs, or microservices. The payload behavior forces the server to interact with sensitive internal endpoints, capturing responses or executing state-changing operations.\nThe post-exploitation impact includes privilege escalation across the network. By querying internal management APIs or metadata endpoints exposed locally to the host, the attacker can acquire security tokens, sensitive configuration data, or elevated credentials, allowing them to expand their foothold within the cloud environment."
}