CVE-2026-5413 Overview
A vulnerability was identified in Newgen OmniDocs up to version 12.0.00 that allows remote attackers to obtain sensitive information through the manipulation of the connectionDetails argument in the /omnidocs/GetWebApiConfiguration endpoint. This information disclosure vulnerability (CWE-200) enables unauthorized access to potentially sensitive configuration data, though the attack is considered to have high complexity.
Critical Impact
Remote attackers can potentially extract sensitive Web API configuration details including connection information, which could facilitate further attacks against the application or infrastructure.
Affected Products
- Newgen OmniDocs up to version 12.0.00
- Systems exposing the /omnidocs/GetWebApiConfiguration endpoint
Discovery Timeline
- April 2, 2026 - CVE-2026-5413 published to NVD
- April 2, 2026 - Last updated in NVD database
Technical Details for CVE-2026-5413
Vulnerability Analysis
This information disclosure vulnerability affects the /omnidocs/GetWebApiConfiguration file in Newgen OmniDocs. The vulnerability stems from improper handling of the connectionDetails argument, which can be manipulated by an attacker to extract sensitive configuration information from the application.
The attack can be carried out remotely over the network without requiring authentication. However, the exploitation is considered difficult due to the high attack complexity involved. The vendor was contacted early about this disclosure but did not respond.
Root Cause
The root cause of this vulnerability is improper information exposure (CWE-200) in the Web API configuration handling mechanism. The application fails to adequately protect sensitive configuration data when processing requests to the GetWebApiConfiguration endpoint, allowing attackers to extract details through manipulation of the connectionDetails parameter.
Attack Vector
The vulnerability is exploitable remotely via network access to the /omnidocs/GetWebApiConfiguration endpoint. An attacker would need to craft a specific request that manipulates the connectionDetails argument to trigger the information disclosure condition.
The attack involves sending specially crafted HTTP requests to the vulnerable endpoint. When the connectionDetails parameter is manipulated in a specific way, the application may inadvertently disclose sensitive Web API configuration information that should not be accessible to unauthorized users.
Additional technical details are available in the VulDB vulnerability entry and associated documentation.
Detection Methods for CVE-2026-5413
Indicators of Compromise
- Unusual or repeated requests to the /omnidocs/GetWebApiConfiguration endpoint
- HTTP requests containing suspicious connectionDetails parameter values
- Abnormal access patterns from external IP addresses targeting OmniDocs endpoints
- Log entries showing unauthorized configuration data access attempts
Detection Strategies
- Monitor web server access logs for requests to /omnidocs/GetWebApiConfiguration with unusual parameter manipulation
- Implement Web Application Firewall (WAF) rules to detect and block suspicious requests targeting the vulnerable endpoint
- Configure intrusion detection systems to alert on reconnaissance activity targeting OmniDocs configuration endpoints
- Review application logs for failed or successful configuration data retrieval from unauthorized sources
Monitoring Recommendations
- Enable detailed logging for the OmniDocs application to capture all requests to the GetWebApiConfiguration endpoint
- Establish baseline traffic patterns for configuration-related endpoints and alert on anomalies
- Implement real-time alerting for external access attempts to sensitive administrative endpoints
- Deploy network traffic analysis to identify potential data exfiltration following exploitation attempts
How to Mitigate CVE-2026-5413
Immediate Actions Required
- Restrict network access to the /omnidocs/GetWebApiConfiguration endpoint using firewall rules or network segmentation
- Implement authentication and authorization controls for all configuration-related API endpoints
- Deploy a Web Application Firewall (WAF) with rules to filter malicious requests targeting this endpoint
- Review and audit access logs for any evidence of prior exploitation attempts
Patch Information
As of the last update, the vendor (Newgen) has not responded to disclosure attempts. No official patch information is available at this time. Organizations should monitor the VulDB entry for updates regarding vendor response or patch availability.
Workarounds
- Block external access to the /omnidocs/GetWebApiConfiguration endpoint at the network perimeter
- Implement IP whitelisting to restrict access to trusted administrative IP addresses only
- Deploy input validation and sanitization for the connectionDetails parameter at the application level
- Consider placing the OmniDocs application behind a reverse proxy with strict request filtering
# Example: Restrict access to vulnerable endpoint using Apache
<Location /omnidocs/GetWebApiConfiguration>
Require ip 10.0.0.0/8
Require ip 192.168.0.0/16
</Location>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
