Description
Postgres MCP Pro 0.3.0 contains a restricted-mode bypass vulnerability where function-name validation is not applied to RangeFunction nodes in FROM clauses. Attackers can execute file-reading functions like pg_read_file through FROM-clause syntax to read arbitrary files despite restricted-mode protections.
Published: 2026-09-04
Score: 9.2 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 04 Sep 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Crystaldba
Crystaldba postgres-mcp
Vendors & Products Crystaldba
Crystaldba postgres-mcp

Fri, 04 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
Description Postgres MCP Pro 0.3.0 contains a restricted-mode bypass vulnerability where function-name validation is not applied to RangeFunction nodes in FROM clauses. Attackers can execute file-reading functions like pg_read_file through FROM-clause syntax to read arbitrary files despite restricted-mode protections.
Title Postgres MCP Pro 0.3.0 Restricted-Mode Bypass via FROM-Clause Function
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}


Subscriptions

Crystaldba Postgres-mcp
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-14T19:33:09.339Z

Reserved: 2026-09-04T11:03:33.315Z

Link: CVE-2026-85620

cve-icon Vulnrichment

Updated: 2026-09-14T19:24:23.561Z

cve-icon NVD

Status : Received

Published: 2026-09-04T15:17:42.150

Modified: 2026-09-14T20:16:58.850

Link: CVE-2026-85620

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-04T15:30:07Z

Weaknesses