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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-85620

Postgres MCP Pro 0.3.0 Restricted-Mode Bypass via FROM-Clause Function

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Status
Published
Published
Updated
Assigning organization
VulnCheck

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

crystaldba postgres-mcp

Default version status: unaffected

  • 0 to ≤ 0.3.0affected
pkg:pypi/postgres-mcp

References