CVE-2026-101507 in Trusted Answer Search
Summary
by MITRE • 10/21/2026
Vulnerability in Oracle Trusted Answer Search (component: PLSQL package). The supported version that is affected is 26.1. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Trusted Answer Search. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Trusted Answer Search accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/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 PLSQL package of Oracle Trusted Answer Search, a component designed to manage and process security-related queries and data integrity checks for Oracle environments. This specific flaw affects version 26.1 and represents a significant risk due to its ease of exploitation by attackers with relatively low privileges. The core technical issue stems from insufficient input validation or access control mechanisms within the PLSQL code, allowing an attacker who has network access via HTTP to interact directly with vulnerable endpoints. Because the vulnerability is easily exploitable and requires only local privilege escalation rather than complex social engineering or high-level administrative rights, it lowers the barrier for entry significantly compared to more sophisticated attacks. The attack vector being network-accessible means that remote adversaries can initiate exploitation attempts without physical proximity to the target system, expanding the potential threat surface considerably in enterprise environments where such services are exposed to internal networks or potentially the internet if not properly segmented.
The operational impact of this vulnerability is primarily centered on data confidentiality rather than integrity or availability. Successful exploitation allows an unauthorized attacker to gain access to critical data stored within Oracle Trusted Answer Search. This includes sensitive security configurations, audit logs, and other proprietary information that the system manages. The consequence is a complete compromise of all accessible data within the scope of this component, leading to potential exposure of organizational secrets, user credentials, or compliance-related records. From an industry standard perspective, this aligns with CWE-284 Improper Access Control and CWE-798 Use of Hard-coded Credentials if authentication bypasses are involved, though the primary classification remains unauthorized access due to flawed privilege enforcement. The CVSS 3.1 base score of 6.5 reflects a medium severity level driven by high confidentiality impact but no direct integrity or availability loss in the initial exploit phase.
In terms of threat modeling and adversary behavior, this vulnerability maps closely to ATT&CK techniques involving Initial Access via Web Applications and subsequent Data Staging or Exfiltration depending on attacker goals. Attackers with low privileges can leverage this flaw to pivot into deeper network segments if Oracle Trusted Answer Search is integrated with other critical database systems. The lack of user interaction required further reduces the likelihood of detection by end-users, making automated scanning tools particularly effective for exploitation. Organizations must recognize that even components perceived as internal or administrative-facing carry significant risk when exposed over HTTP without additional layers of authentication or encryption.
Mitigation strategies should focus on immediate remediation through applying vendor-provided patches to update Oracle Trusted Answer Search beyond version 26.1 where the flaw is resolved. In cases where patching is not immediately feasible, network segmentation becomes critical; restricting access to the PLSQL endpoints via HTTP to only trusted IP addresses or internal subnets can reduce exposure. Implementing Web Application Firewalls with rules targeting specific SQL injection patterns or unauthorized API calls may also provide a layer of defense. Additionally, enforcing strict least-privilege principles for all accounts interacting with this component ensures that even if exploitation occurs, the scope of potential data access is limited. Regular auditing of HTTP traffic logs for anomalous queries directed at Oracle Trusted Answer Search can aid in early detection and response to ongoing exploitation attempts.