CVE-2026-21924 Overview
CVE-2026-21924 is a vulnerability affecting the Oracle Utilities Application Framework product of Oracle Utilities Applications, specifically within the General component. This easily exploitable flaw allows a low-privileged attacker with network access via HTTP to compromise the Oracle Utilities Application Framework. The vulnerability requires human interaction from a person other than the attacker, and while the vulnerability exists in Oracle Utilities Application Framework, successful attacks may significantly impact additional products (scope change).
Successful exploitation can result in unauthorized update, insert, or delete access to some of the Oracle Utilities Application Framework accessible data, as well as unauthorized read access to a subset of the framework's accessible data.
Critical Impact
Attackers with low privileges can leverage this network-accessible vulnerability to perform unauthorized data modifications and access sensitive information across multiple products through scope change, requiring only user interaction to exploit.
Affected Products
- Oracle Utilities Application Framework 4.4.0.3.0
- Oracle Utilities Application Framework 4.5.0.0.0
- Oracle Utilities Application Framework 4.5.0.1.1
- Oracle Utilities Application Framework 4.5.0.1.3
- Oracle Utilities Application Framework 4.5.0.2.0
- Oracle Utilities Application Framework 25.4
- Oracle Utilities Application Framework 25.10
Discovery Timeline
- January 20, 2026 - CVE-2026-21924 published to NVD
- January 20, 2026 - Last updated in NVD database
Technical Details for CVE-2026-21924
Vulnerability Analysis
This vulnerability resides in the General component of Oracle Utilities Application Framework and represents an authorization bypass or broken access control issue. The attack is easily exploitable due to its low complexity requirements, needing only a low-privileged account and network access via HTTP.
The scope change characteristic indicates that while the vulnerable component is Oracle Utilities Application Framework, the impact extends beyond this component to affect additional products or resources within the environment. This cross-boundary impact makes the vulnerability particularly concerning in enterprise deployments where Oracle Utilities Application Framework integrates with other Oracle products and services.
The vulnerability affects both confidentiality and integrity, allowing attackers to read sensitive data and perform unauthorized modifications to accessible data within the framework.
Root Cause
The vulnerability stems from improper access control within the General component of Oracle Utilities Application Framework. The application fails to properly validate user permissions when processing HTTP requests, allowing low-privileged users to access and modify data beyond their authorized scope. This broken access control mechanism enables authenticated users to bypass intended restrictions and affect resources in other products.
Attack Vector
The attack is network-based and delivered via HTTP, making it accessible to any attacker who can reach the Oracle Utilities Application Framework over the network. The attack requires:
- A low-privileged authenticated account on the target system
- Network access to the Oracle Utilities Application Framework via HTTP
- Social engineering or phishing to obtain human interaction from another user
The attacker initiates malicious HTTP requests that exploit the access control weakness in the General component. When a victim user interacts with the compromised session or crafted content, the attacker gains unauthorized access to read and modify data, potentially affecting other integrated products.
Detection Methods for CVE-2026-21924
Indicators of Compromise
- Unusual HTTP request patterns targeting the Oracle Utilities Application Framework General component from authenticated low-privilege accounts
- Unexpected data modifications or access to restricted resources by users with insufficient privileges
- Evidence of cross-application data access originating from Oracle Utilities Application Framework sessions
- Authentication logs showing low-privileged accounts accessing high-privilege data endpoints
Detection Strategies
- Implement logging and alerting for HTTP requests to the Oracle Utilities Application Framework that result in access to resources outside the user's assigned privilege level
- Monitor for anomalous data read and write operations within the General component, particularly those affecting multiple products
- Deploy web application firewall (WAF) rules to detect and block suspicious request patterns targeting known vulnerable endpoints
- Enable audit logging for all data access and modification events within Oracle Utilities Application Framework
Monitoring Recommendations
- Configure SIEM rules to correlate low-privilege authentication events with high-value data access within Oracle Utilities Application Framework
- Monitor network traffic for unusual HTTP request volumes or patterns to the Oracle Utilities Application Framework
- Implement user behavior analytics (UBA) to detect privilege abuse and anomalous access patterns
- Review application logs regularly for signs of unauthorized cross-product data access
How to Mitigate CVE-2026-21924
Immediate Actions Required
- Apply the Oracle Critical Patch Update (CPU) for January 2026 immediately to all affected Oracle Utilities Application Framework installations
- Review and audit user privileges within Oracle Utilities Application Framework to ensure principle of least privilege
- Implement network segmentation to limit exposure of Oracle Utilities Application Framework to trusted networks only
- Enable enhanced logging and monitoring for the General component pending patch deployment
Patch Information
Oracle has addressed this vulnerability in the January 2026 Critical Patch Update. Administrators should refer to the Oracle Security Alert January 2026 for detailed patching instructions and download links. The patch should be applied to all affected versions: 4.4.0.3.0, 4.5.0.0.0, 4.5.0.1.1, 4.5.0.1.3, 4.5.0.2.0, 25.4, and 25.10.
Workarounds
- Restrict network access to Oracle Utilities Application Framework by implementing firewall rules that limit HTTP access to trusted IP addresses and networks only
- Implement additional authentication controls such as multi-factor authentication (MFA) to reduce the risk of compromised low-privilege accounts
- Disable or restrict access to the General component functionality where business operations permit
- Deploy a web application firewall (WAF) with custom rules to inspect and filter malicious HTTP requests targeting the vulnerable component
- Conduct user awareness training to reduce the likelihood of successful social engineering attacks that enable exploitation
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
