pgEdge Postgres MCP Server write confirmation skipped for writes that begin with a reading keyword

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-126199
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-12 18:17:25 UTC
Updated2026-11-12 19:09:06 UTC
DescriptionpgEdge Postgres MCP Server enables SQL queries against PostgreSQL databases through Model Context Protocol compatible clients. Prior to 1.1.0, the bundled CLI and web clients classified query_database statements only by their first keyword before deciding whether to display a write confirmation. SELECT INTO, data-modifying common table expressions beginning with WITH, and EXPLAIN ANALYZE of a write were treated as reads and could execute without confirmation on an allow_writes connection. Read-only connections remain protected by PostgreSQL transaction access mode, and EXPLAIN without ANALYZE and SELECT FOR UPDATE remain classified as reads. This issue is fixed in 1.1.0.

Risk And Classification

Primary CVSS: v3.1 6.8 MEDIUM from [email protected]

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

Problem Types: CWE-357 | CWE-357 CWE-357: Insufficient UI Warning of Dangerous Operations

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
3.1CNADECLARED6.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA PgEdge Pgedge-postgres-mcp affected < 1.1.0 Not specified

References

ReferenceSourceLinkTags
github.com/pgEdge/pgedge-postgres-mcp/commit/310c02809891cfaee6e4891cd7b... [email protected] github.com
github.com/pgEdge/pgedge-postgres-mcp/releases/tag/v1.1.0 [email protected] github.com
github.com/pgEdge/pgedge-postgres-mcp/security/advisories/GHSA-5gmh-9683... [email protected] github.com
github.com/pgEdge/pgedge-postgres-mcp/pull/233 [email protected] github.com
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