CVE-2026-101522 in TimesTen In-Memory Database
Summary
by MITRE • 10/21/2026
Vulnerability in Oracle TimesTen In-Memory Database (component: TimesTen IMDB). Supported versions that are affected are 22.1-22.1.1.43.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle TimesTen In-Memory Database executes to compromise Oracle TimesTen In-Memory Database. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle TimesTen In-Memory Database accessible data. CVSS 3.1 Base Score 5.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Oracle TimesTen In-Memory Database, specifically affecting versions ranging from 22.1 through 22.1.1.43.0. This component is designed to provide high-performance data management by storing data in main memory rather than on disk, which makes it a critical asset for applications requiring low-latency access to large datasets. The presence of this flaw indicates a fundamental weakness in the authentication or authorization mechanisms that govern how users interact with the database engine once they have established an initial connection to the infrastructure hosting the service.
The technical nature of this vulnerability allows for exploitation by attackers who possess only low-level privileges and valid logon credentials on the underlying operating system where Oracle TimesTen executes. This classification aligns closely with CWE-269, which describes Improper Privilege Management, as well as CWE-732, concerning Incorrect Permission Assignment for Critical Resource. The attacker does not need to bypass complex network-based authentication layers or exploit remote code execution flaws; instead, the vulnerability is triggered by actions taken after local logon. This suggests that the database software fails to adequately enforce separation of duties or restricts access controls based on insufficiently validated user roles within its internal architecture.
The operational impact of a successful exploitation is significant, primarily centered around data confidentiality rather than integrity or availability. As indicated by the CVSS 3.1 vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, an attacker can achieve high-level unauthorized access to critical data stored within the TimesTen instance. This means that sensitive information such as financial records, customer personal identifiable information, or proprietary business logic could be exfiltrated without detection. The lack of impact on integrity and availability suggests that while the attacker cannot easily corrupt data or crash the service, they can read everything accessible by the compromised account, potentially leading to severe regulatory violations under standards like GDPR or HIPAA depending on the data type.
From a threat intelligence perspective, this vulnerability maps to MITRE ATT&CK technique T1078, Valid Accounts, as it relies on legitimate credentials being misused due to insufficient privilege restrictions within the application layer. It also relates to T1530, Data from Local System, since the attacker accesses data directly from the local storage or memory space of the database engine after gaining initial foothold via logon. The ease of exploitation and low required privileges make this a high-risk issue for environments where multiple users share server access or where service accounts are overly permissive.
Mitigation strategies must focus on both immediate patching and long-term architectural hardening. Oracle has released updates to address this flaw, so applying the latest security patches for TimesTen versions 22.1 through 22.1.1.43.0 is the primary remediation step. Beyond patching, organizations should implement strict least-privilege principles by ensuring that database service accounts and user profiles have only the minimum permissions necessary to perform their specific functions. Network segmentation should also be reviewed to ensure that even if an attacker gains local logon access, they cannot easily pivot to other critical systems. Regular auditing of user privileges and monitoring for anomalous data retrieval patterns can further reduce the risk associated with this vulnerability type.