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.

References

https://www.vulncheck.com/advisories/tabularis-through-0.27.0-read-only-bypass-via-mcp-run-query-select-classification

https://hackmd.io/@haind/S1BofaIsMx

https://github.com/TabularisDB/tabularis/blob/804c4c3bb6fd8eaa2e36cbe49f6c0d58f373b5e9/src-tauri/src/mcp/mod.rs#L1136-L1171

https://github.com/TabularisDB/tabularis/blob/804c4c3bb6fd8eaa2e36cbe49f6c0d58f373b5e9/src-tauri/src/ai_activity.rs#L357-L416

https://github.com/TabularisDB/tabularis

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-96430

Details

Source: Mitre, NVD

Published: 2026-10-10

Updated: 2026-10-10

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:H/Au:N/C:N/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 6.3

Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H

Severity: Medium

CVSS v4

Base Score: 5.8

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Medium