CVE
CVE-2026-85620
Postgres MCP Pro 0.3.0 Restricted-Mode Bypass via FROM-Clause Function
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 pgreadfile through FROM-clause syntax to read arbitrary files despite restricted-mode protections.
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request
CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.2
-
4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-
Related Resources
No items found.
References
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85620.json, https://nvd.nist.gov/vuln/detail/CVE-2026-85620, https://www.vulncheck.com/advisories/postgres-mcp-pro-0.3.0-restricted-mode-bypass-via-from-clause-function, https://github.com/crystaldba/postgres-mcp/issues/178, https://github.com/crystaldba/postgres-mcp, https://github.com/crystaldba/postgres-mcp/blob/v0.3.0/src/postgresmcp/sql/safesql.py