CVE-2026-21997
8.5Oracle · Life Sciences Empirica Signal
A vulnerability in the Common Core component of Oracle Life Sciences Empirica Signal allows a low privileged attacker to compromise data via network access.
Executive summary
A high-severity vulnerability in Oracle Life Sciences Empirica Signal permits unauthorized access and modification of critical data by authenticated attackers.
Vulnerability
The vulnerability exists within the Common Core component and can be triggered by a low privileged attacker with network access via HTTP. It allows for unauthorized read, creation, deletion, or modification of critical data and exhibits a scope change that may impact additional products.
Business impact
The compromise of this product poses a significant risk to data integrity and confidentiality, particularly given its use in life sciences research. With a CVSS score of 8.5, this high-severity flaw enables unauthorized actors to manipulate sensitive research datasets, which could lead to severe reputational damage, loss of intellectual property, or regulatory non-compliance.
Remediation
Immediate Action: Review the official Oracle Security Alert for April 2026 to identify available patches or mitigation steps for the affected versions.
Proactive Monitoring: Monitor network traffic for unusual HTTP requests directed at the Empirica Signal instance and review administrative access logs for unauthorized changes to critical datasets.
Compensating Controls: Implement strict network segmentation and ensure that the application is not exposed directly to the public internet, using a Web Application Firewall to filter suspicious HTTP traffic.
Exploitation status
Public Exploit Available: No
Analyst recommendation
Given the high impact on data integrity and the potential for scope-changing attacks, organizations must prioritize the review of the Oracle security documentation. Apply all recommended vendor updates immediately upon availability to close this access vector and prevent potential data manipulation by malicious actors.
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Sources
- Oracle Advisory Vendor advisory