CVE-2026-49809 Overview
CVE-2026-49809 is a SQL Injection vulnerability affecting Dell PowerProtect Cyber Recovery versions 20.2 and prior. The flaw results from improper neutralization of special elements used in a SQL command [CWE-89]. A low-privileged remote attacker can craft malicious input that alters backend SQL queries executed by the application. Successful exploitation leads to information disclosure from the underlying database. Dell addressed the issue in security advisory DSA-2026-370.
Critical Impact
Authenticated remote attackers can extract sensitive information from the PowerProtect Cyber Recovery database through crafted SQL queries.
Affected Products
- Dell PowerProtect Cyber Recovery version 20.2
- Dell PowerProtect Cyber Recovery versions prior to 20.2
Discovery Timeline
- 2026-08-26 - CVE-2026-49809 published to NVD
- 2026-08-26 - Last updated in NVD database
Technical Details for CVE-2026-49809
Vulnerability Analysis
Dell PowerProtect Cyber Recovery is an isolated recovery vault designed to protect backup data from ransomware and destructive cyberattacks. The affected versions contain a SQL Injection weakness in an application component reachable over the network. The application concatenates or improperly parameterizes user-supplied values before passing them to the database engine.
An authenticated attacker with low privileges can inject SQL syntax through vulnerable input fields. Injected statements execute in the database context, allowing the attacker to read data outside the intended scope. The confidentiality impact is high, while integrity and availability remain unaffected according to the CVSS vector.
Root Cause
The root cause is improper neutralization of special SQL characters in user-controlled input [CWE-89]. The application fails to enforce prepared statements or strict input validation on at least one query path. This allows metacharacters such as single quotes, comments, and UNION operators to alter query structure.
Attack Vector
Exploitation requires network access to the PowerProtect Cyber Recovery management interface and valid low-privilege credentials. No user interaction is required. The attacker submits crafted parameters through an authenticated request, triggering the database to return or leak information from tables the attacker should not access. Refer to the Dell Security Update DSA-2026-370 for component-specific technical details.
Detection Methods for CVE-2026-49809
Indicators of Compromise
- Unexpected SQL syntax such as UNION SELECT, --, ';, or OR 1=1 appearing in application request logs
- Anomalous database query volume or query patterns originating from low-privileged user sessions
- Application errors referencing SQL syntax or database exceptions in Cyber Recovery logs
Detection Strategies
- Enable verbose application and database query logging on the PowerProtect Cyber Recovery management server
- Deploy a web application firewall (WAF) rule set that inspects authenticated API traffic for SQL injection payloads
- Correlate authentication events with subsequent bursts of database read activity from the same session
Monitoring Recommendations
- Alert on authenticated sessions issuing requests containing SQL metacharacters against Cyber Recovery endpoints
- Monitor for outbound data transfers from the Cyber Recovery vault that deviate from baseline recovery workflows
- Review privileged database account usage and query plans for unusual SELECT operations against sensitive tables
How to Mitigate CVE-2026-49809
Immediate Actions Required
- Upgrade Dell PowerProtect Cyber Recovery to the fixed version identified in Dell Security Update DSA-2026-370
- Rotate credentials for all low-privileged Cyber Recovery accounts following the patch
- Restrict network reachability of the Cyber Recovery management interface to trusted administrative networks
Patch Information
Dell has released a security update addressing this SQL Injection vulnerability in Dell PowerProtect Cyber Recovery. Administrators should apply the fix documented in DSA-2026-370. Consult the vendor advisory for the exact fixed version and upgrade procedure.
Workarounds
- Enforce network segmentation so that only administrative jump hosts can reach the Cyber Recovery management interface
- Review and reduce the number of accounts with access to the affected interface until patching completes
- Enable database and application audit logging to capture any exploitation attempts prior to remediation
# Configuration example
# Restrict management interface access with host-based firewall rules
iptables -A INPUT -p tcp --dport 443 -s <admin_subnet> -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
