CVE-2026-61143 Overview
CVE-2026-61143 affects the Oracle Communications Convergent Charging Controller (OCCCC) product within the Prov IF component. The flaw exists in supported versions 15.0.0.0.0 and 15.2.0.0.0. A high-privileged attacker with network access over HTTP can exploit the vulnerability, though successful attacks require user interaction from a person other than the attacker. Exploitation is considered difficult due to elevated privilege requirements and the interaction dependency. Successful exploitation results in full takeover of the OCCCC instance, impacting confidentiality, integrity, and availability of the charging platform.
Critical Impact
Successful exploitation leads to complete takeover of Oracle Communications Convergent Charging Controller, compromising billing and charging integrity for telecommunications operators.
Affected Products
- Oracle Communications Convergent Charging Controller 15.0.0.0.0
- Oracle Communications Charging Controller 15.2.0.0.0
- Prov IF (Provisioning Interface) component
Discovery Timeline
- 2026-07-21 - CVE CVE-2026-61143 published to NVD
- 2026-07-21 - Last updated in NVD database
- July 2026 - Addressed in Oracle Critical Patch Update, as referenced in the Oracle Security Alert July 2026
Technical Details for CVE-2026-61143
Vulnerability Analysis
The vulnerability resides in the Prov IF (Provisioning Interface) component of Oracle Communications Convergent Charging Controller. OCCCC handles real-time charging and rating for voice, data, and messaging services in telecommunications environments. The Prov IF component exposes HTTP endpoints used for provisioning subscribers, service configurations, and account data. A defect in this interface allows an attacker who already holds high privileges to escalate their control and take over the underlying product when a legitimate user performs a required action. The impact spans confidentiality, integrity, and availability at the high level, indicating that a successful attacker gains authority equivalent to full administrative control of the charging platform.
Root Cause
Oracle has not published detailed root-cause information. The advisory describes a defect reachable through HTTP-facing provisioning logic that becomes exploitable when combined with a user-initiated action. The Prov IF component's handling of authenticated requests is the operative attack surface. Refer to the Oracle Security Alert July 2026 for vendor-provided technical context.
Attack Vector
The attack vector is network-based via HTTP against the Prov IF interface. Exploitation requires the attacker to already hold high privileges within the OCCCC environment and to induce a separate user to perform an action, such as opening a crafted resource or triggering a specific workflow. Because attack complexity is high and privilege requirements are elevated, this vulnerability is more likely to be leveraged by insiders or by attackers who have already obtained provisioning credentials through prior compromise.
No verified public exploit code is available. See the Oracle Security Alert July 2026 for authoritative technical details.
Detection Methods for CVE-2026-61143
Indicators of Compromise
- Unexpected HTTP requests to Prov IF endpoints originating from privileged accounts outside normal administrative windows.
- New or modified provisioning records, service configurations, or account entries that cannot be tied to a change ticket.
- Authentication events for high-privileged OCCCC accounts from unusual source addresses or user agents.
Detection Strategies
- Enable verbose HTTP access logging on the Prov IF interface and forward logs to a centralized analytics platform for correlation.
- Baseline normal provisioning activity by user, endpoint, and time-of-day, and alert on statistical deviations.
- Correlate provisioning changes with authenticated session identifiers to identify actions that were induced through social engineering or session misuse.
Monitoring Recommendations
- Monitor administrative account behavior for lateral use of provisioning APIs following credential changes or password resets.
- Alert on configuration changes to Prov IF authentication, TLS, or access-control settings.
- Review audit trails for user-interaction patterns preceding privileged provisioning changes, such as email or ticket-driven requests that trigger unusual API activity.
How to Mitigate CVE-2026-61143
Immediate Actions Required
- Apply the fixes documented in the Oracle Critical Patch Update - July 2026 to all OCCCC 15.0.0.0.0 and 15.2.0.0.0 deployments.
- Inventory all systems running the affected Prov IF component and prioritize patching for internet-adjacent or partner-facing instances.
- Rotate credentials for high-privileged OCCCC accounts and audit recent provisioning activity for signs of misuse.
Patch Information
Oracle addressed CVE-2026-61143 in the July 2026 Critical Patch Update. Administrators should follow the vendor advisory for the specific patch bundle applicable to Oracle Communications Convergent Charging Controller versions 15.0.0.0.0 and 15.2.0.0.0. See the Oracle Security Alert July 2026 for download and installation guidance.
Workarounds
- Restrict network access to the Prov IF HTTP interface to trusted management networks using firewall rules or reverse-proxy allowlists.
- Enforce least-privilege on OCCCC administrative roles and remove standing high-privilege access where feasible.
- Require multi-factor authentication and step-up authentication for privileged provisioning workflows until patching is complete.
- Train operations staff on the user-interaction requirement to reduce the chance of unwitting participation in an exploitation chain.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
