CVE-2026-126197
- Source
- https://cve.org/CVERecord?id=CVE-2026-126197
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-126197.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-126197
- Aliases
-
- GHSA-r5pp-jx86-r6r9
- Published
- 2026-11-12T17:29:35Z
- Modified
- 2026-11-13T02:47:05Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- pgEdge Postgres MCP Server SQL injection through custom pl-do tool parameters
- Details
-
pgEdge Postgres MCP Server enables SQL queries against PostgreSQL databases through Model Context Protocol compatible clients. Prior to 1.1.0, custom pl-do tools interpolated JSON arguments into a PostgreSQL DO block delimited by fixed dollar-quote tags. An argument containing $mcp_custom_tool$ could terminate the block and inject arbitrary SQL statements, while $mcp_args$ could inject procedural code into a plpgsql block. Because the statement used the simple query protocol, injected text could include additional statements and transaction control, bypassing read_only and accessing data or modifying resources available to the connecting role. The issue requires at least one pl-do custom tool; sql and pl-func tools pass arguments as bind parameters and are not affected by this injection mechanism. This issue is fixed in 1.1.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-89" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126197.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126197.json
- https://github.com/pgEdge/pgedge-postgres-mcp/commit/b5b929305de7a22cd6ed7de8ae1be2ac90ca0868
- https://github.com/pgEdge/pgedge-postgres-mcp/pull/196
- https://github.com/pgEdge/pgedge-postgres-mcp/releases/tag/v1.1.0
- https://github.com/pgEdge/pgedge-postgres-mcp/security/advisories/GHSA-r5pp-jx86-r6r9
- https://nvd.nist.gov/vuln/detail/CVE-2026-126197
Affected packages
Git / github.com/pgedge/pgedge-postgres-mcp
Affected ranges
- Type
- GIT
- Repo
- https://github.com/pgedge/pgedge-postgres-mcp
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "1.1.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "b5b929305de7a22cd6ed7de8ae1be2ac90ca0868" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v1.1.0", "range": [ { "fixed": "25c2aaed03398584ceea0dd71f7f67631c3dff4e" } ], "source": "REFERENCES_TAG" } ] }