{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-85620", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-04T11:03:33.315Z", "datePublished": "2026-09-04T14:32:11.907Z", "dateUpdated": "2026-09-14T19:33:09.339Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-04T14:32:11.907Z" }, "datePublic": "2026-06-06T00:00:00.000Z", "title": "Postgres MCP Pro 0.3.0 Restricted-Mode Bypass via FROM-Clause Function", "descriptions": [ { "lang": "en", "value": "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." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Incorrect Authorization", "cweId": "CWE-863", "type": "CWE" } ] } ], "affected": [ { "vendor": "crystaldba", "product": "postgres-mcp", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/postgres-mcp", "versions": [ { "version": "0", "status": "affected", "versionType": "semver", "lessThanOrEqual": "0.3.0" } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.2, "baseSeverity": "CRITICAL" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 8.6, "baseSeverity": "HIGH" } } ], "references": [ { "url": "https://github.com/crystaldba/postgres-mcp/issues/178", "tags": [ "issue-tracking" ], "name": "GitHub Issue #178" }, { "url": "https://github.com/crystaldba/postgres-mcp", "tags": [ "product" ] }, { "url": "https://github.com/crystaldba/postgres-mcp/blob/v0.3.0/src/postgres_mcp/sql/safe_sql.py", "tags": [ "technical-description" ] }, { "name": "VulnCheck Advisory: Postgres MCP Pro 0.3.0 Restricted-Mode Bypass via FROM-Clause Function", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/postgres-mcp-pro-0.3.0-restricted-mode-bypass-via-from-clause-function" } ], "credits": [ { "lang": "en", "value": "George Chen", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2026-85620", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2026-09-14T19:19:58.465013Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-14T19:33:09.339Z" } } ] } }