CVE-2026-20030 in Crosswork Planning
Summary
by MITRE • 08/19/2026
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.
The vulnerabilities tracked by CVE-2026-20030 are related to improper neutralization of special elements used in a SQL command issues that are grouped under the Common Weakness Enumeration (CWE) CWE-89.
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Analysis
by VulDB Data Team • 08/19/2026
Cisco Crosswork, an integrated network management and automation platform, has released a software hardening update addressing multiple internally discovered vulnerabilities through its proactive security review process. Among these is CVE-2026-20030, which addresses a critical flaw in the application's handling of user-supplied input within database queries. This vulnerability falls under the Common Weakness Enumeration category CWE-89, commonly known as SQL Injection. The root cause lies in improper neutralization of special elements used in SQL commands, allowing an attacker to manipulate backend database operations by injecting malicious SQL syntax through legitimate-looking inputs.
The technical flaw stems from insufficient validation or sanitization mechanisms when processing data that is directly concatenated into SQL statements without proper parameterization or escaping procedures. In a typical implementation, user input such as usernames, search queries, or configuration parameters should be treated strictly as data rather than executable code. However, in this instance, the application fails to adequately distinguish between structural SQL commands and raw data values. This oversight enables an attacker to alter the logic of database queries by injecting characters like single quotes, semicolons, or comment markers that break out of the intended query context. Such manipulation can lead to unauthorized access to sensitive information, modification of critical network configuration data, or even complete compromise of the underlying database infrastructure depending on the privileges granted to the application's database account.
The operational impact of this vulnerability is significant given the central role Cisco Crosswork plays in managing enterprise networks. If exploited successfully, an attacker could extract confidential network topology details, user credentials stored within the system, or proprietary automation scripts that define network behavior. In worst-case scenarios where the database service runs with elevated privileges, the attacker might execute operating system commands via SQL server features such as xp_cmdshell on Microsoft SQL Server or similar extensions in other database engines. This could result in full control over the host running the Crosswork application, leading to a complete breach of network integrity and availability. The ability to modify data also poses risks for supply chain attacks where malicious configurations are injected into automated deployment pipelines managed by Crosswork.
Mitigation strategies primarily involve applying the provided software hardening release from Cisco immediately upon availability. This update includes code changes that enforce strict input validation, implement parameterized queries or prepared statements to separate SQL logic from user data, and apply least-privilege principles for database accounts used by the application. Administrators should also ensure that web application firewalls are configured with rules capable of detecting common SQL injection patterns if such layers exist in their deployment architecture. Regular security audits focusing on input handling across all interfaces interacting with Crosswork services will help identify similar weaknesses before they can be exploited. Keeping systems updated and monitoring logs for anomalous database activity remain essential practices to maintain resilience against this class of vulnerabilities aligned with ATT&CK technique T1059, Command and Scripting Interpreter, when SQL injection leads to further exploitation steps.