CVE-2026-61103 Overview
CVE-2026-61103 affects the Oracle PeopleSoft Enterprise CS Campus Community product in the Security component. The affected version is 9.2.38. An unauthenticated attacker with access to the physical communication segment attached to the hardware running PeopleSoft Enterprise CS Campus Community can compromise the application.
Successful exploitation results in unauthorized access to critical data or complete access to all PeopleSoft Enterprise CS Campus Community accessible data. Attackers can also perform unauthorized updates, insertions, or deletions on a subset of accessible data. The vulnerability requires adjacent network access and is difficult to exploit.
Critical Impact
Adjacent-network attackers can obtain unauthorized read access to sensitive campus community data and modify a subset of records without authentication.
Affected Products
- Oracle PeopleSoft Enterprise CS Campus Community 9.2.38
- Oracle PeopleSoft (Security component)
Discovery Timeline
- 2026-07-21 - CVE-2026-61103 published to the National Vulnerability Database
- 2026-07-21 - Last updated in NVD database
Technical Details for CVE-2026-61103
Vulnerability Analysis
The flaw resides in the Security component of Oracle PeopleSoft Enterprise CS Campus Community. It allows an unauthenticated attacker positioned on the same physical communication segment as the target host to compromise confidentiality and integrity. The attack does not require user interaction.
The scope remains unchanged, meaning exploitation impacts only resources managed by the vulnerable component. Confidentiality impact is high, integrity impact is low, and availability is not affected. High attack complexity indicates that exploitation depends on conditions outside the attacker's direct control.
Root Cause
Oracle has not disclosed the underlying weakness class in public advisories. The Oracle Security Alert July 2026 confirms the affected component is Security within PeopleSoft Enterprise CS Campus Community. No CWE identifier has been assigned in the NVD entry.
Attack Vector
Exploitation requires adjacent-network access, meaning the attacker must be on the same broadcast domain, VLAN, or physical segment as the target server. No credentials or user interaction are required. Attackers leveraging this position can intercept, inject, or manipulate traffic destined for the PeopleSoft server to trigger the vulnerable code path.
See the Oracle Security Alert July 2026 for vendor-provided technical details. No public proof-of-concept code is available at this time.
Detection Methods for CVE-2026-61103
Indicators of Compromise
- Unexpected read operations against Campus Community tables containing student records, identifiers, or personally identifiable information.
- Unauthorized UPDATE, INSERT, or DELETE operations executed against PeopleSoft Campus Community datasets outside normal batch windows.
- Anomalous traffic originating from hosts on the same VLAN as the PeopleSoft application tier.
Detection Strategies
- Enable PeopleSoft application server audit logging and forward events to a centralized analytics platform for correlation.
- Monitor for ARP spoofing, rogue DHCP, and other layer-2 anomalies on network segments hosting PeopleSoft servers.
- Baseline normal database query patterns against the Campus Community schema and alert on deviations.
Monitoring Recommendations
- Deploy network monitoring on segments adjacent to PeopleSoft hosts to identify unauthorized devices or sniffing behavior.
- Track authentication and session anomalies within PeopleSoft, including sessions established without a preceding valid authentication flow.
- Review egress from PeopleSoft servers for unusual data volumes that may indicate bulk extraction.
How to Mitigate CVE-2026-61103
Immediate Actions Required
- Apply the July 2026 Oracle Critical Patch Update for PeopleSoft Enterprise CS Campus Community 9.2.38 as documented in the Oracle Security Alert July 2026.
- Restrict adjacent-network access to PeopleSoft application servers through VLAN segmentation and strict access control lists.
- Enforce authenticated and encrypted communication for all PeopleSoft internal services.
Patch Information
Oracle addressed this vulnerability in the July 2026 Critical Patch Update. Administrators should review the Oracle Security Alert July 2026 for the specific patch matrix and apply the fix to all instances of PeopleSoft Enterprise CS Campus Community 9.2.38.
Workarounds
- Isolate PeopleSoft application and database tiers on dedicated network segments with strict layer-2 controls.
- Deploy 802.1X, dynamic ARP inspection, and DHCP snooping to reduce the risk of adjacent-network attacks.
- Limit administrative and service accounts to jump hosts requiring multi-factor authentication.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
