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CVE-2026-61233 is a critical vulnerability affecting the Integration component of Oracle PeopleSoft Enterprise FIN Common Objects Brazil, version 9.1. The root cause is a missing authentication check for a critical function, classified under CWE-306 (Missing Authentication for Critical Function), compounded by improper authentication (CWE-287) and improper access control (CWE-284). The Integration component exposes an unauthenticated HTTP endpoint that can be reached remotely.
An unauthenticated attacker with network access via HTTP can exploit this flaw without any credentials or user interaction. The attack complexity is low, and no privileges are required. The vulnerability allows the attacker to compromise the entire PeopleSoft Enterprise FIN Common Objects Brazil instance, leading to a complete system takeover. Oracle’s own characterization confirms that successful exploitation results in full compromise of confidentiality, integrity, and availability.
The vulnerability was assigned a CVSS 3.1 base score of 9.8 (Critical) with the vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. It was disclosed on July 21, 2026, as part of Oracle’s July 2026 Critical Patch Update (CPU). The CVE was reserved on July 8, 2026, and published on July 22, 2026. CISA’s SSVC evaluation independently confirms automatable exploitation with total technical impact, reinforcing the critical severity rating.
The technical details of the vulnerability are not publicly available, and no exploit has been released as of the current date. However, the vulnerability is considered easily exploitable due to the lack of authentication requirements. The estimated exploit price ranges from USD $5,000 to $25,000. The EPSS score is 0.5 with a percentile of 39%, indicating a moderate probability of exploitation. The vulnerability affects only version 9.1 of PeopleSoft Enterprise FIN Common Objects Brazil; no other versions are listed as affected.
Organizations using this version are at immediate risk, as the vulnerability can be exploited remotely over HTTP without any prerequisites. The Integration component, which is responsible for handling various integration workflows, becomes the entry point for attackers. Once exploited, the attacker gains the ability to execute arbitrary operations, potentially leading to data exfiltration, system disruption, and complete administrative control over the affected PeopleSoft instance.
DailyCVE Form:
Platform: Oracle PeopleSoft Enterprise FIN Common Objects Brazil
Version: 9.1
Vulnerability: Missing Authentication for Critical Function (CWE-306)
Severity: Critical (CVSS 9.8)
Date: July 21, 2026
Prediction: Expected Patch Date: July 2026 CPU (already released)
What Undercode Say:
Analytics:
- CVSS 3.1 Base Score: 9.8 (Critical)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- EPSS Score: 0.5 (39th percentile)
- Exploit Price Estimate: $5k–$25k USD
- CISA KEV: Not listed
Bash commands and codes related to the blog
Check if PeopleSoft Enterprise FIN Common Objects Brazil version 9.1 is running ps -ef | grep -i "peoplesoft" | grep -i "fin" Identify the Integration Broker HTTP endpoint (typically ports 80/443) nmap -p 80,443 <target_ip> --script=http- Test for unauthenticated access to the Integration component curl -v -X GET http://<target_ip>/psigw/PeopleSoftServiceListeningConnector Attempt to enumerate available integration services without authentication curl -s -X POST http://<target_ip>/psigw/PeopleSoftServiceListeningConnector \ -H "Content-Type: text/xml" \ -d '<?xml version="1.0"?><soap:Envelope ...></soap:Envelope>' Check Oracle CPU patch level for July 2026 sqlplus -s system@peoplesoft_db <<EOF SELECT VERSION FROM PSVERSION WHERE VERSION LIKE '%9.1%'; EOF Monitor logs for unusual HTTP requests to Integration Broker tail -f $PS_HOME/logs/serv.log | grep -i "integration"
Exploit:
No public exploit is currently available for CVE-2026-61233. The technical details remain unknown, and no proof-of-concept code has been released. However, the vulnerability is easily exploitable due to the missing authentication on the Integration component’s HTTP endpoint. An attacker with network access can craft malicious HTTP requests to the exposed endpoint to execute arbitrary commands and gain full control over the PeopleSoft instance. The attack can be launched remotely without any credentials or user interaction. Given the critical severity and the simplicity of the attack vector, it is anticipated that exploit code may emerge in the near future. Organizations are strongly advised to apply the official patch immediately rather than rely on temporary workarounds.
Protection:
- Apply the Oracle July 2026 Critical Patch Update (CPU) immediately through My Oracle Support.
- Restrict network access to PeopleSoft HTTP endpoints (typically ports 80/443 and the Integration Broker gateway URL) to trusted IP ranges only.
- Disable or limit access to the Integration component if it is not actively required.
- Implement network segmentation to isolate the PeopleSoft environment from untrusted networks.
- Deploy Web Application Firewall (WAF) rules to detect and block anomalous requests targeting the Integration Broker.
- Monitor logs for suspicious HTTP traffic patterns targeting the Integration component.
- Conduct a vulnerability scan to identify exposed PeopleSoft instances running version 9.1.
Impact:
Successful exploitation of CVE-2026-61233 results in complete takeover of the affected PeopleSoft Enterprise FIN Common Objects Brazil instance. An attacker can compromise the confidentiality, integrity, and availability of the system. This includes unauthorized access to sensitive financial data, modification or deletion of critical records, and disruption of business operations. The vulnerability can be exploited remotely over HTTP without any authentication, making it highly attractive for malicious actors. Organizations in industries such as finance, insurance, public administration, and healthcare are particularly at risk. The lack of a public exploit does not reduce the risk, as the vulnerability is easily exploitable and the technical details may become known over time. Immediate patching is the only reliable mitigation to prevent potential system compromise.
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Sources:
Reported By: nvd.nist.gov
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