CVE-2026-69854 – Spring Cloud Azure Elevation of Privilege Vulnerability

Spring Cloud Azure contains an improper authentication vulnerability that could allow an unauthenticated attacker to elevate privileges over a network. In an affected multi-tenant application, an attacker could use an identity token issued by a tenant they control to obtain an authenticated session. Successful exploitation could expose protected data and allow actions normally restricted to authenticated users. The affected Microsoft product is Spring Cloud Azure.

CVSS SCORE: 9.

SEVERITY: Critical.

THREAT: This vulnerability presents a significant authentication and privilege-elevation threat to affected multi-tenant applications. An attack can originate over the network without existing privileges or user interaction. Attack complexity is high because specific protocol settings, configurations, or other conditions must be present for exploitation to succeed.

EXPLOITS: The vulnerability is not publicly disclosed and is not known to be exploited. Exploit code maturity is Unproven, while the exploitability assessment is Exploitation More Likely. No confirmed public exploit, zero-day exploitation, or proof-of-concept exploit code is identified.

TECHNICAL SUMMARY: The vulnerability is caused by improper authentication (CWE-287) in Spring Cloud Azure. An unauthenticated attacker could obtain an identity token from a tenant under their control and use that token to sign in to an affected multi-tenant application. If the required conditions are present, the application could accept the attacker and establish an authenticated session for an unauthorized tenant. The attacker could then access protected resources and perform operations available to authenticated users. The vulnerability has network attack vector, high attack complexity, no privilege requirement, no user-interaction requirement, changed scope, and high potential impact to confidentiality, integrity, and availability.

EXPLOITABILITY: Spring Cloud Azure is affected; specific affected versions are not confirmed from the source. Exploitation can occur remotely over the network by using an identity token from an attacker-controlled tenant against an affected multi-tenant application. No privileges or user interaction are required.

BUSINESS IMPACT: Successful exploitation could allow unauthorized access to protected application data and authenticated operations. For organizations running affected multi-tenant applications, this creates risks to confidentiality, integrity, and availability. An unauthorized authenticated session could effectively turn a trust boundary failure into access to sensitive resources and business functions.

WORKAROUND: No mitigation or workaround is identified. An official fix is identified as the remediation.

URGENCY: This vulnerability is rated Critical with a CVSS base score of 9. Although exploitation is not currently reported and exploit code maturity is Unproven, exploitation is assessed as More Likely. The ability to attack over the network without privileges or user interaction makes deployment of the official fix a high priority, particularly for affected multi-tenant applications.