CVE-2026-108604
Medium
Description
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.
SeverityMedium
CVSS6.3
Exploit probability—
ProductTabularis
PublishedOct 10, 2026
First seenOct 10, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| TabularisDB tabularis | v ≤ 0.27.0 | — |
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