CVE-2026-125322: SQL Injection (CVSS 6.5)

Description

pgEdge Postgres MCP Server enables SQL queries against PostgreSQL databases through Model Context Protocol compatible clients. Prior to 1.1.0, the where parameter of the count_rows tool accepted subqueries against tables other than the table named in the tool call. A caller could use predicates and the returned row count as an inference oracle to extract data from any other table that the connected database role could read. The database privilege boundary remained intact, and the flaw did not grant access to tables outside that role's existing SELECT privileges. This issue is fixed in version 1.1.0.

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CVSS v3.1 Score

6.5

MEDIUM

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

EPSS — Exploit Prediction

0.0033

Probability of exploitation

0.27%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-89 SQL Injection

CWE-209 CWE-209

References

Other References

https://github.com/pgEdge/pgedge-postgres-mcp/commit/933f1b4cb136183eb307064c1cf1ad2bf015f314 https://github.com/pgEdge/pgedge-postgres-mcp/issues/200 https://github.com/pgEdge/pgedge-postgres-mcp/pull/201 https://github.com/pgEdge/pgedge-postgres-mcp/releases/tag/v1.1.0 https://github.com/pgEdge/pgedge-postgres-mcp/security/advisories/GHSA-fhv3-x3jh-grj7

Frequently Asked Questions

What is CVE-2026-125322? +

pgEdge Postgres MCP Server enables SQL queries against PostgreSQL databases through Model Context Protocol compatible clients. Prior to 1.1.0, the where parameter of the count_rows tool accepted subqueries against tables other than the table named in the tool call. A caller could use predicates and the returned row count as an inference oracle to extract data from any other table that the connected database role could read. The database privilege boundary remained intact, and the flaw did not grant access to tables outside that role's existing SELECT privileges. This issue is fixed in version 1.1.0. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-125322? +

CVE-2026-125322 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0033, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-125322? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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