CVE-2026-92903 in CLI
Summary
by MITRE • 09/17/2026
Improper input validation in Snowflake CLI versions prior to 3.27.0 allowed unsanitized user-controlled values to be interpolated into SQL strings that are executed as multi-statement queries. An attacker who is able to supply a malicious project configuration file or craft command-line input can cause Snowflake CLI to execute attacker-controlled SQL statements in the context of the victim's Snowflake session and active role. Successful exploitation requires either write or pull-request access to a project repository whose CI/CD pipeline runs Snowflake CLI under an elevated service account role, or the ability to supply untrusted input to CLI-wrapping automation. Impact is limited by the privileges held by the configured Snowflake role at execution time. The fix is available in Snowflake CLI version 3.27.0, which also addresses several additional security findings. Users must manually upgrade.
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Analysis
by VulDB Data Team • 09/17/2026
The vulnerability identified involves a critical improper input validation flaw within Snowflake Command Line Interface versions prior to release 3.27.0. This defect allows unsanitized user-controlled values to be directly interpolated into SQL strings that are subsequently executed as multi-statement queries. The core technical issue stems from the failure of the CLI application to properly sanitize or escape special characters and control sequences within input parameters before they are incorporated into dynamic SQL generation logic. By allowing raw, unvalidated data to influence the structure of executable commands, the software creates a pathway for code injection attacks where an adversary can manipulate the intended execution flow of database operations.
From a technical perspective, this flaw aligns with Common Weakness Enumeration category CWE-78, which describes Improper Neutralization of Special Elements used in an OS Command, and more specifically relates to SQL Injection patterns found under CWE-89 when considering the context of database query construction. The ability to inject multiple statements means that beyond simple data exfiltration or modification, an attacker can potentially execute administrative commands, alter schema definitions, or chain attacks by executing subsequent queries immediately following a maliciously injected statement. This multi-statement capability significantly amplifies the potential damage compared to single-query injection vectors because it bypasses many traditional safeguards designed for isolated command execution.
The operational impact of this vulnerability is severe and directly tied to the privilege level of the Snowflake role configured at runtime. An attacker who successfully exploits this flaw can execute arbitrary SQL statements within the context of the victim's active session and assigned role. If the compromised account possesses elevated privileges, such as those held by service accounts used in CI/CD pipelines for database deployments or administrative tasks, the consequences include unauthorized data modification, deletion of critical objects, creation of backdoor users, or complete compromise of the Snowflake environment. The attack surface is primarily expanded through project configuration files and command-line inputs, meaning that any automation wrapping the CLI becomes a potential entry point if it processes untrusted metadata or user-provided parameters without adequate validation.
Exploitation scenarios typically involve an attacker gaining write access to a project repository where CI/CD pipelines utilize Snowflake CLI under elevated service account credentials. By injecting malicious content into configuration files or pull requests, the adversary can trigger the vulnerable code path during automated deployment processes. Alternatively, if there is automation that wraps the CLI and accepts untrusted input from external sources without rigorous sanitization, this vulnerability provides a direct route for remote code execution within the database layer. The severity of the impact is strictly bounded by the permissions granted to the specific Snowflake role being used; however, given that CI/CD pipelines often require high-level privileges to manage infrastructure-as-code and schema changes, the risk remains critically high in most enterprise environments utilizing this tooling.
To mitigate this vulnerability, organizations must immediately upgrade Snowflake CLI to version 3.27.0 or later, as earlier versions contain unresolved security findings related to input handling. Since the fix is not automatically applied through standard update mechanisms for all deployment types, manual intervention by system administrators and DevOps engineers is required to replace the binary on affected systems. Beyond software updates, defensive measures should include implementing strict allow-listing of inputs passed to CLI wrappers, enforcing least-privilege principles for service accounts used in CI/CD pipelines, and auditing configuration files for unauthorized modifications. Integrating static analysis tools that detect potential SQL injection patterns in project configurations can also help identify risky practices before they reach production environments.
This incident underscores the importance of treating command-line interfaces as attack surfaces requiring rigorous input validation similar to web applications or API endpoints. The ATT&CK framework categorizes such behaviors under techniques involving Command and Scripting Interpreter abuse, specifically highlighting how attackers leverage legitimate system tools for malicious purposes when proper controls are absent. By addressing this flaw through timely patching and reinforcing secure coding practices in automation pipelines, organizations can prevent unauthorized SQL execution and maintain the integrity of their data warehousing infrastructure against injection-based threats.