CVE-2026-126197

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126197", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-11-10T20:07:44.957Z", "datePublished": "2026-11-12T17:29:35.883Z", "dateUpdated": "2026-11-12T17:29:35.883Z"}, "containers": {"cna": {"title": "pgEdge Postgres MCP Server SQL injection through custom pl-do tool parameters", "problemTypes": [{"descriptions": [{"cweId": "CWE-89", "lang": "en", "description": "CWE-89: Improper Neutralization of Special Elements used in an SQL Command", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/pgEdge/pgedge-postgres-mcp/security/advisories/GHSA-r5pp-jx86-r6r9", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/pgEdge/pgedge-postgres-mcp/security/advisories/GHSA-r5pp-jx86-r6r9"}, {"name": "https://github.com/pgEdge/pgedge-postgres-mcp/pull/196", "tags": ["x_refsource_MISC"], "url": "https://github.com/pgEdge/pgedge-postgres-mcp/pull/196"}, {"name": "https://github.com/pgEdge/pgedge-postgres-mcp/commit/b5b929305de7a22cd6ed7de8ae1be2ac90ca0868", "tags": ["x_refsource_MISC"], "url": "https://github.com/pgEdge/pgedge-postgres-mcp/commit/b5b929305de7a22cd6ed7de8ae1be2ac90ca0868"}, {"name": "https://github.com/pgEdge/pgedge-postgres-mcp/releases/tag/v1.1.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/pgEdge/pgedge-postgres-mcp/releases/tag/v1.1.0"}], "affected": [{"vendor": "pgEdge", "product": "pgedge-postgres-mcp", "versions": [{"version": "< 1.1.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-12T17:29:35.883Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-r5pp-jx86-r6r9", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "pgedge-postgres-mcp", "vendor": "pgEdge", "versions": [{"status": "affected", "version": "< 1.1.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-126197", "lastModified": "2026-11-12T19:09:06.967", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-11-12T18:17:24.780", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/pgEdge/pgedge-postgres-mcp/commit/b5b929305de7a22cd6ed7de8ae1be2ac90ca0868"}, {"source": "security-advisories@github.com", "url": "https://github.com/pgEdge/pgedge-postgres-mcp/pull/196"}, {"source": "security-advisories@github.com", "url": "https://github.com/pgEdge/pgedge-postgres-mcp/releases/tag/v1.1.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/pgEdge/pgedge-postgres-mcp/security/advisories/GHSA-r5pp-jx86-r6r9"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-89"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.1.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "pgedge-postgres-mcp", "source": "cna", "vendor": "pgEdge"}, "product": "pgedge-postgres-mcp", "vendor": "pgedge"}], "created": "2026-11-13T08:32:12.591598+00:00", "updated": "2026-11-13T08:32:12.591662+00:00", "vendors": ["pgedge", "pgedge$PRODUCT$pgedge-postgres-mcp"]}