CVE-2026-61326 in Siebel CRM Cloud Applications
Summary
by MITRE • 08/19/2026
Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.6. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Cloud Applications. While the vulnerability is in Siebel CRM Cloud Applications, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM Cloud Applications accessible data as well as unauthorized update, insert or delete access to some of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the Siebel Cloud Manager component of Oracle Siebel CRM, specifically affecting supported versions ranging from 22.3 through 26.6. This security flaw represents a critical risk to organizations relying on this enterprise customer relationship management platform for their core business operations. The nature of the defect allows an attacker with low privileges and network access via HTTP to compromise the integrity and confidentiality of the application environment. Unlike typical vulnerabilities that are confined strictly to the component where they originate, this issue exhibits a scope change characteristic, meaning that exploitation can lead to significant impacts on additional products or systems connected to or dependent upon Siebel CRM Cloud Applications. This lateral movement potential amplifies the severity of the threat, as it transforms what might appear as an isolated application flaw into a broader infrastructure compromise vector.
From a technical perspective, the vulnerability enables unauthorized access to critical data and grants complete access to all data accessible by Siebel CRM Cloud Applications. Furthermore, it permits attackers to perform unauthorized updates, inserts, or deletes on specific datasets within the system. The ability to modify data introduces severe integrity risks, allowing for potential manipulation of business records, financial transactions, or customer information stored in the database. The requirement for low-privileged access and network connectivity via HTTP suggests that the attack surface is relatively broad, potentially accessible through standard web interfaces without requiring complex user interaction or high-level authentication credentials initially. This ease of exploitation lowers the barrier to entry for malicious actors, increasing the likelihood of successful attacks against organizations with insufficiently hardened configurations or outdated software versions.
The operational impact of this vulnerability is substantial, primarily driven by its high confidentiality and integrity scores as defined in the CVSS 3.1 metric set. With a base score of 8.5, classified as High severity, the flaw poses a direct threat to data privacy and system reliability. Unauthorized access to critical data can lead to significant regulatory compliance violations, such as breaches of GDPR or HIPAA depending on the industry sector. The ability to alter or delete data introduces risks of operational disruption, financial loss due to fraudulent transactions, and reputational damage resulting from exposed sensitive information. Because attacks may impact additional products beyond Siebel CRM itself, organizations must consider the potential for cascading failures across their integrated technology stack, which could affect downstream systems that rely on accurate and secure data feeds from this platform.
To mitigate these risks, immediate action is required to apply vendor-provided patches or updates that address the specific flaw in the Siebel Cloud Manager component. Organizations should verify their current version against the affected range of 22.3 through 26.6 and prioritize upgrading to a secure release as soon as possible. In addition to patching, implementing strict access controls is essential; this includes enforcing multi-factor authentication for all administrative accounts and ensuring that low-privileged users operate under the principle of least privilege with minimal network exposure. Network segmentation strategies should be reviewed to limit HTTP-based access from untrusted networks directly to Siebel components. Furthermore, continuous monitoring and logging enhancements can help detect anomalous data modification patterns indicative of exploitation attempts. Aligning remediation efforts with industry standards such as CWE for vulnerability classification and MITRE ATT&CK for tracking adversary tactics will ensure a comprehensive defense strategy against both current threats and future attack vectors targeting similar enterprise applications.