CVE-2026-7292: o2oa Auth Bypass Vulnerability

CVE-2026-7292 Overview

A security vulnerability has been detected in O2OA up to version 10.0. This impacts the function syncFile of the file NodeAgent.java of the component NodeAgent. The manipulation leads to improper authorization. The attack can be initiated remotely, though the complexity of an attack is rather high and the exploitability is said to be difficult. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Critical Impact
Improper authorization in the NodeAgent file synchronization function could allow unauthorized remote users to manipulate file operations, potentially leading to unauthorized data access or system compromise.

Affected Products

O2OA up to version 10.0
O2OA NodeAgent component
Systems utilizing NodeAgent.javasyncFile functionality

Discovery Timeline

2026-04-28 - CVE-2026-7292 published to NVD
2026-04-29 - Last updated in NVD database

Technical Details for CVE-2026-7292

Vulnerability Analysis

This vulnerability falls under CWE-266 (Incorrect Privilege Assignment), representing an improper authorization weakness in the O2OA platform. The flaw exists within the syncFile function of NodeAgent.java, which is part of the NodeAgent component responsible for file synchronization operations.

The vulnerability allows attackers to bypass intended authorization controls during file synchronization operations. While the attack vector is network-based, successful exploitation requires overcoming high attack complexity barriers, making practical exploitation difficult but not impossible for sophisticated attackers.

Root Cause

The root cause stems from incorrect privilege assignment (CWE-266) in the syncFile function within the NodeAgent.java component. The authorization mechanism fails to properly validate user privileges before permitting file synchronization operations, allowing unauthorized entities to potentially access or manipulate files they should not have access to.

Attack Vector

The vulnerability is exploitable remotely over the network. An attacker targeting this vulnerability would need to:

Identify an exposed O2OA NodeAgent service
Craft requests to the syncFile function with manipulated parameters
Bypass the insufficient authorization checks to perform unauthorized file operations

The high complexity of the attack means that specific conditions or additional information may be required for successful exploitation. The vulnerability affects the confidentiality, integrity, and availability of the system, though to a limited extent due to the difficulty of exploitation.

Detailed technical information about this vulnerability can be found in the GitHub Issue Tracker Entry and the VulDB vulnerability entry.

Detection Methods for CVE-2026-7292

Indicators of Compromise

Unusual file synchronization requests to the NodeAgent component from unauthorized sources
Unexpected access patterns or authentication failures in NodeAgent logs
Anomalous network traffic targeting O2OA NodeAgent services
Unauthorized modifications to synchronized files or directories

Detection Strategies

Monitor NodeAgent service logs for suspicious syncFile function invocations
Implement network intrusion detection rules to identify exploitation attempts against O2OA services
Deploy application-layer monitoring to detect authorization bypass attempts
Review access control logs for privilege escalation patterns

Monitoring Recommendations

Enable verbose logging for the NodeAgent component to capture detailed operation logs
Implement real-time alerting for failed authorization attempts in file synchronization operations
Monitor network traffic for unusual patterns targeting O2OA services on expected ports
Regularly audit file system changes in directories managed by NodeAgent

How to Mitigate CVE-2026-7292

Immediate Actions Required

Restrict network access to O2OA NodeAgent services to trusted IP addresses only
Implement additional authentication layers for file synchronization operations
Review and strengthen firewall rules to limit exposure of NodeAgent endpoints
Monitor for exploitation attempts while awaiting an official patch from the vendor

Patch Information

As of the last update on 2026-04-29, the O2OA project has not responded to the vulnerability report submitted via the GitHub Issue Tracker. Users should monitor the O2OA GitHub repository for security updates and patch releases. Additional vulnerability details are available through VulDB.

Workarounds

Implement network segmentation to isolate O2OA services from untrusted networks
Deploy a Web Application Firewall (WAF) with rules to filter malicious requests to NodeAgent
Disable the syncFile functionality if not critical to operations until a patch is available
Implement strict input validation at the network perimeter for requests to O2OA services

bash

# Example: Restrict access to NodeAgent service using iptables
# Allow only trusted IP addresses to access NodeAgent port
iptables -A INPUT -p tcp --dport <nodeagent_port> -s <trusted_ip_range> -j ACCEPT
iptables -A INPUT -p tcp --dport <nodeagent_port> -j DROP