CVE Catalog

CVE-2026-108604

MediumCVSS 6.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.13%

2th percentile - higher than 2% of all known CVEs

Summary

Tabularis through 0.27.0 contains an incorrect authorization vulnerability in the MCP run_query safety gate. It allows prompt-injected agents or untrusted MCP clients to bypass read-only mode by submitting side-effecting SELECT statements such as SELECT setval, nextval, or PostgreSQL query_to_xml with embedded DELETE, modifying data without approval prompts.

Risk Assessment

An attacker can modify database data without required approval, leading to unauthorized changes and potential data integrity loss.

Recommendation

Update Tabularis to a version later than 0.27.0 and verify the authorization mechanisms of the MCP run_query gate.

Related vulnerabilities

Original NVD description (English source)

Tabularis through 0.27.0 contains an incorrect authorization vulnerability in the MCP run_query safety gate that allows prompt-injected agents or untrusted MCP clients to bypass read-only mode by submitting side-effecting SELECT statements. Attackers can run statements like SELECT setval, nextval, or PostgreSQL query_to_xml with embedded DELETE to modify data without approval prompts.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS