CVE-2026-108604CWE-863broken-access-control

CVE-2026-108604

Medium · published October 11, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
2.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
CVSS v4.0
5.8 · 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
EPSS
0.00131 · 2.5th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-10-11T00:16Z
References (6)
https://github.com/TabularisDB/tabularis · [email protected]https://github.com/TabularisDB/tabularis/blob/804c4c3bb6fd8eaa2e36cbe49f6c0d58f373b5e9/src-tauri/src/ai_activity.rs#L357-L416 · [email protected]https://github.com/TabularisDB/tabularis/blob/804c4c3bb6fd8eaa2e36cbe49f6c0d58f373b5e9/src-tauri/src/mcp/mod.rs#L1136-L1171 · [email protected]https://hackmd.io/@haind/S1BofaIsMx · [email protected]https://www.vulncheck.com/advisories/tabularis-through-0.27.0-read-only-bypass-via-mcp-run-query-select-classification · [email protected]https://hackmd.io/@haind/S1BofaIsMx · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 12 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 10 OCT 19:54Z
    Tabularis through 0.27.0 Read-Only Bypass via MCP run_query SELECT Classification
    cvelistv5
  • 10 OCT 19:54Z
    Tabularis through 0.27.0 Read-Only Bypass via MCP run_query SELECT Classification
    cvelistv5