CVE-2026-125322

MEDIUM 6.5

pgEdge Postgres MCP Server SQL injection in the count_rows where parameter

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

pgEdge Postgres MCP Server enables SQL queries against PostgreSQL databases through Model Context Protocol compatible clients. Prior to 1.1.0, the where parameter of the count_rows tool accepted subqueries against tables other than the table named in the tool call. A caller could use predicates and the returned row count as an inference oracle to extract data from any other table that the connected database role could read. The database privilege boundary remained intact, and the flaw did not grant access to tables outside that role's existing SELECT privileges. This issue is fixed in version 1.1.0.

CWE	CWE-89 CWE-209
Vendor	pgedge
Product	pgedge-postgres-mcp
Published	Nov 10, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

pgEdge / pgedge-postgres-mcp

< 1.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/pgEdge/pgedge-postgres-mcp/security/advisories/GHSA-fhv3-x3jh-grj7 github.com: https://github.com/pgEdge/pgedge-postgres-mcp/issues/200 github.com: https://github.com/pgEdge/pgedge-postgres-mcp/pull/201 github.com: https://github.com/pgEdge/pgedge-postgres-mcp/commit/933f1b4cb136183eb307064c1cf1ad2bf015f314 github.com: https://github.com/pgEdge/pgedge-postgres-mcp/releases/tag/v1.1.0