CVE-2026-0610: Devolutions Server SQLi Vulnerability

CVE-2026-0610 Overview

CVE-2026-0610 is a SQL Injection vulnerability affecting the remote-sessions component in Devolutions Server. This vulnerability allows unauthenticated attackers to inject malicious SQL queries through the remote-sessions functionality, potentially leading to unauthorized data access, data manipulation, or complete database compromise.

Critical Impact

This SQL Injection vulnerability enables network-based attackers to execute arbitrary SQL commands without authentication, potentially compromising sensitive credential data, session information, and administrative access stored in Devolutions Server.

Affected Products

• Devolutions Server versions 2025.3.1 through 2025.3.12

Discovery Timeline

• 2026-01-19 - CVE CVE-2026-0610 published to NVD
• 2026-01-20 - Last updated in NVD database

Technical Details for CVE-2026-0610

Vulnerability Analysis

This vulnerability falls under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), commonly known as SQL Injection. The flaw exists within the remote-sessions component of Devolutions Server, where user-supplied input is incorporated directly into SQL queries without proper sanitization or parameterization.

The attack surface is particularly concerning as the vulnerability can be exploited over the network without requiring any authentication or user interaction. Successful exploitation could allow attackers to read sensitive data from the database, modify or delete records, execute administrative operations, and potentially gain access to the underlying operating system depending on database configuration.

Root Cause

The root cause of CVE-2026-0610 is improper input validation in the remote-sessions functionality. User-controlled input is concatenated directly into SQL query strings rather than using parameterized queries or prepared statements. This allows attackers to break out of the intended query structure and inject arbitrary SQL commands that the database server executes with the application's privileges.

Attack Vector

The vulnerability is exploitable remotely over the network. An attacker can craft malicious requests to the remote-sessions endpoint containing SQL injection payloads. These payloads exploit the lack of input sanitization to manipulate database queries.

Common SQL injection techniques applicable to this vulnerability include:

• Union-based injection: Appending UNION SELECT statements to extract data from other tables
• Boolean-based blind injection: Inferring database contents through true/false response variations
• Time-based blind injection: Using database delay functions to extract information
• Error-based injection: Leveraging database error messages to enumerate schema information
• Stacked queries: Executing multiple SQL statements to perform data manipulation or administrative actions

For technical details on the exploitation mechanism, refer to the Devolutions Security Advisory DEVO-2026-0003.

Detection Methods for CVE-2026-0610

Indicators of Compromise

• Unusual database query patterns or errors in Devolutions Server logs indicating SQL syntax anomalies
• Unexpected data access patterns or bulk data extraction from the remote-sessions tables
• Authentication bypass events or unauthorized administrative actions
• Database error messages containing SQL fragments in application logs or responses

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect common SQL injection patterns in requests to the remote-sessions endpoint
• Monitor database query logs for suspicious patterns including UNION SELECT, semicolon-terminated queries, or time-delay functions
• Implement intrusion detection signatures for SQL injection attack signatures targeting Devolutions Server
• Review access logs for anomalous request patterns to the remote-sessions API endpoints

Monitoring Recommendations

• Enable detailed logging for the Devolutions Server remote-sessions component
• Configure database audit logging to track query execution and potential injection attempts
• Set up alerts for database errors that may indicate SQL injection probing
• Monitor for unusual data exfiltration patterns or large query result sets

How to Mitigate CVE-2026-0610

Immediate Actions Required

• Upgrade Devolutions Server to a patched version beyond 2025.3.12 immediately
• If immediate patching is not possible, restrict network access to the Devolutions Server to trusted IP ranges only
• Review database and application logs for any signs of prior exploitation
• Consider temporarily disabling the remote-sessions functionality if operationally feasible until patching is complete

Patch Information

Devolutions has released a security update addressing this vulnerability. Organizations should upgrade to the latest version of Devolutions Server that addresses CVE-2026-0610. Detailed patch information and upgrade instructions are available in the Devolutions Security Advisory DEVO-2026-0003.

Workarounds

• Implement network segmentation to limit access to Devolutions Server from untrusted networks
• Deploy a Web Application Firewall (WAF) with SQL injection detection rules as an additional layer of defense
• Enable database-level query logging and monitoring to detect exploitation attempts
• Apply principle of least privilege to the database account used by Devolutions Server to limit potential damage from SQL injection

# Example: Restrict network access to Devolutions Server using firewall rules
# Allow only trusted management networks (adjust IP ranges as needed)
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP