CVE-2026-92903 — Improper input validation in Snowflake CLI versions prior to 3.27.0 allowed unsanitized…¶

Key facts

CVE-2026-92903 is a High (8.2) vulnerability: Improper input validation in Snowflake CLI versions prior to 3.27.0 allowed unsanitized…. This entry ships a detection-only PoC and a Docker test lab.


CVE	CVE-2026-92903
Severity	High (8.2)
Detection / prevention	—
PoC	poc.py
Source	2026/CVE-2026-92903/

Details¶

English | 한국어

Description¶

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.

Vulnerability Details¶

Property	Value
CVE ID	CVE-2026-92903
Type	SQLI
CVSS Score	8.2

Proof of Concept¶

Download¶

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-92903/poc.py

Usage¶

# Run PoC against target
python3 poc.py --target <TARGET_URL>

# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>

⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.

Test Lab¶

This repository includes a Docker-based test environment with both vulnerable and patched applications.

Quick Start¶

# Clone and navigate to CVE directory
cd CVE-2026-92903

# Start both applications
docker-compose up -d

# Run tests
./run-tests.sh    # Linux/Mac
./run-tests.ps1   # Windows PowerShell

Application Endpoints¶

Application	URL	Status
Vulnerable App	http://localhost:8080	Shows vulnerability
Patched App	http://localhost:8081	Demonstrates fix

Directory Structure¶

├── README.md           # English documentation
├── README_KO.md        # Korean documentation
├── poc.py              # PoC detection script
├── docker-compose.yml  # Container orchestration
├── run-tests.sh        # Linux/Mac test runner
├── run-tests.ps1       # Windows test runner
├── vulnerable-app/     # Vulnerable version
│   ├── app.py
│   ├── Dockerfile
│   └── requirements.txt
└── patched-app/        # Fixed version
    ├── app.py
    ├── Dockerfile
    └── requirements.txt

References¶

https://github.com/snowflakedb/snowflake-cli/releases/tag/v3.27.0

Generated by PoC Generator on 2026-09-17T21:02:33.213575282

Frequently asked questions¶

What is CVE-2026-92903?¶

CVE-2026-92903 is a High (8.2) vulnerability: Improper input validation in Snowflake CLI versions prior to 3.27.0 allowed unsanitized…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-92903?¶

Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.

How do I block or mitigate CVE-2026-92903?¶

Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.

For authorized security testing and research only. See the full source and NVD record.