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How CVE-2026-54629 Works
Anyquery is a powerful SQL query engine that extends SQLite’s capabilities, enabling users to query diverse data sources. However, a critical vulnerability, identified as CVE-2026-54629, was discovered in its server mode.
The core of the issue lies in the server handler’s failure to sanitize input or enforce access control on built-in SQLite virtual table modules like `csv_reader` and log_reader. When Anyquery is started in server mode using the command anyquery server, it binds to a TCP port and listens for MySQL protocol connections. An unauthenticated attacker can connect to this port and issue SQL commands.
Because the server does not restrict these virtual table modules to a safe set of directories, an attacker can execute a `CREATE VIRTUAL TABLE` statement. By pointing a module like `csv_reader` to a sensitive local file path (e.g., `/etc/passwd` or ~/.ssh/id_rsa), the attacker can force the Anyquery server process to read that file. The file read operation is performed with the privileges of the Anyquery server process, making any file accessible to that process vulnerable to exfiltration. This vulnerability allows for a full Local File Read (LFR), leading to a complete compromise of the system’s file confidentiality.
DailyCVE Form
Platform: Anyquery
Version: < 0.4.5
Vulnerability: Local File Read
Severity: High (7.5)
Date: 2026-07-14
Prediction: Patch unavailable
What Undercode Say: Analytics
The vulnerability stems from a lack of input sanitization and missing access controls on SQLite virtual table modules in server mode. This allows an attacker to read any file the server process has access to. The attack vector is network-based, requires low complexity, no privileges, and no user interaction, as reflected in its CVSS score.
Vulnerable Configuration:
anyquery server --host 0.0.0.0 --port 8070
Exploit Commands:
mysql -u root -h <VICTIM_IP> -P 8070
CREATE VIRTUAL TABLE passwd USING csv_reader('/etc/passwd');
SELECT FROM passwd;
Exploit
- Start the Server: The attacker first identifies a victim running Anyquery in server mode on a public or accessible network interface.
- Connect to the Server: Using a standard MySQL client, the attacker connects to the victim’s Anyquery server.
- Execute Malicious Queries: The attacker then executes a series of SQL queries to create a virtual table that reads a target file and then selects data from it.
Protection
- Upgrade: The primary and most effective mitigation is to upgrade Anyquery to a version that addresses this vulnerability. As of the latest information, no fixed version is known, but users should monitor the project’s official channels for security patches.
- Network Segmentation: Restrict access to the Anyquery server port (default 8070) using a firewall. Only allow connections from trusted IP addresses or internal networks.
- Principle of Least Privilege: Run the Anyquery server process with the minimum necessary filesystem permissions. Avoid running it as `root` or with access to highly sensitive system files.
- Configuration: If available in future versions, utilize sandboxing mechanisms like a `–restrict-paths` flag to limit file read operations to a specific, safe directory.
Impact
- Confidentiality: High. An attacker can achieve a complete compromise of local file system confidentiality, reading sensitive files such as
/etc/passwd, private SSH keys (~/.ssh/id_rsa), source code, and database credentials. - Integrity: None.
- Availability: None.
- CVSS Score: 7.5 (High)
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Sources:
Reported By: github.com
Extra Source Hub:
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