CVE intelligence and bounded remediation

CVE-2021-47714 — Hasura Graphql Engine security vulnerability

Medium CVSS 6.9

Hasura GraphQL 1.3.3 contains a local file read vulnerability that allows attackers to access system files through SQL injection in the query endpoint. Attackers can exploit the pg_read_file() PostgreSQL function by crafting malicious SQL queries to read arbitrary files on the server.

Severity
Medium
CVSS
6.9 (4.0)
Published
2025-12-22
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-89

Affected products

  • hasura / graphql_engine / 1.3.3

Matched remediation archetype

SQL and data-query injection

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Check exposure

  • Trace request, message, file, and stored values into SQL, ORM query fragments, filters, sort expressions, and other data-query languages.
  • Inventory database roles, reachable schemas, multi-tenant boundaries, and whether stacked or administrative operations are enabled.
  • Check both direct queries and second-order use of previously stored values.

Remediate safely

  • Use parameterized queries or safe query builders for all values; map identifiers and operators through explicit allowlists.
  • Remove raw query concatenation and give the application account only the tables and operations it requires.
  • Update affected data-access components and add regression tests for query structure preservation with inert edge-case inputs.

Authoritative sources

Complete CVE record and remediation plan

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