CVE-2026-26245: Qnap Video Station SQL Injection Vulnerability

CVE-2026-26245 Overview

CVE-2026-26245 is a SQL injection vulnerability [CWE-89] affecting QNAP Video Station. An authenticated remote attacker with a valid user account can inject malicious SQL statements through the application. Successful exploitation allows the attacker to execute unauthorized code or commands on the affected system. QNAP has addressed the issue in Video Station version 5.8.8 and later. The vulnerability requires low privileges and no user interaction, making it practical to exploit once an attacker obtains any valid account on the Network Attached Storage (NAS) device.

Critical Impact
An authenticated attacker can leverage SQL injection to execute unauthorized code or commands against QNAP NAS devices running vulnerable Video Station versions.

Affected Products

QNAP Video Station versions prior to 5.8.8
QNAP NAS devices with Video Station installed
Deployments exposing Video Station to networked user accounts

Discovery Timeline

2026-10-15 - CVE-2026-26245 published to the National Vulnerability Database (NVD)
2026-10-16 - Last updated in NVD database

Technical Details for CVE-2026-26245

Vulnerability Analysis

The flaw is a server-side SQL injection in QNAP Video Station. The application accepts attacker-controlled input and concatenates it into SQL queries without proper parameterization or sanitization. An authenticated remote attacker can craft input that alters query logic, extracts data, or triggers command execution paths exposed through the database layer.

QNAP's advisory indicates that successful exploitation enables execution of unauthorized code or commands. This elevates the impact beyond data exposure into full application-level compromise. Because Video Station runs on QNAP NAS appliances, a compromised instance can pivot toward stored media, user data, and adjacent services on the device.

Root Cause

The root cause is improper neutralization of special elements used in a SQL command [CWE-89]. Video Station builds database queries using unsanitized request parameters supplied by authenticated users. The absence of prepared statements or strict input validation allows query structure to be modified at runtime.

Attack Vector

The attack vector is network-based. An attacker must first obtain a valid Video Station user account, which can be achieved through credential reuse, phishing, or weak default accounts. Once authenticated, the attacker sends crafted HTTP requests containing SQL payloads to vulnerable endpoints. No user interaction is required beyond the attacker's own authenticated session.

No public proof-of-concept exploit or exploitation in the wild has been reported at the time of publication.

Detection Methods for CVE-2026-26245

Indicators of Compromise

Unexpected authenticated requests to Video Station endpoints containing SQL metacharacters such as ', --, UNION, or SELECT
Video Station database errors or anomalous query latency recorded in application logs
New or unexpected processes spawned by the Video Station service account on the NAS
Outbound network connections from the NAS to unknown hosts following Video Station activity

Detection Strategies

Inspect Video Station HTTP access logs for parameter values containing SQL injection patterns from authenticated sessions
Correlate authenticated Video Station activity with child process creation on the NAS to identify command execution attempts
Alert on repeated authentication failures followed by successful logins to Video Station, indicating credential-based access

Monitoring Recommendations

Forward QNAP system and application logs to a centralized logging platform for retention and query
Monitor the installed Video Station version across all managed NAS devices and alert when versions below 5.8.8 are observed
Track user account creation and privilege changes on QNAP devices to detect precursor activity

How to Mitigate CVE-2026-26245

Immediate Actions Required

Upgrade Video Station to version 5.8.8 or later on all affected QNAP NAS devices
Audit Video Station user accounts and remove unused or weak-credentialed accounts
Restrict network access to Video Station so it is reachable only from trusted internal networks
Enforce strong, unique passwords and enable two-factor authentication on QNAP accounts

Patch Information

QNAP has released a fixed version of Video Station that resolves CVE-2026-26245. Administrators should install Video Station 5.8.8 or later through the QNAP App Center. Refer to the QNAP Video Station Pro Release Notes for version details and installation guidance.

Workarounds

Disable or uninstall Video Station on NAS devices where the application is not required
Place QNAP NAS devices behind a VPN or firewall rule set that blocks untrusted inbound access to Video Station
Limit Video Station access to a minimal set of accounts and avoid granting administrative privileges where not needed

bash

# Example firewall rule to restrict Video Station access to a trusted subnet
# Adjust interface, port, and subnet to match your deployment
iptables -A INPUT -p tcp --dport 8080 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 8080 -j DROP