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PostgreSQL CVE-2021-47748

CRITICAL
OS Command Injection (CWE-78)
2026-01-21 disclosure@vulncheck.com
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Feb 02, 2026 - 18:11 vuln.today
Public exploit code
CVE Published
Jan 21, 2026 - 18:16 nvd
CRITICAL 9.8

DescriptionCVE.org

Hasura GraphQL 1.3.3 contains a remote code execution vulnerability that allows attackers to execute arbitrary shell commands through SQL query manipulation. Attackers can inject commands into the run_sql endpoint by crafting malicious GraphQL queries that execute system commands through PostgreSQL's COPY FROM PROGRAM functionality.

AnalysisAI

Hasura GraphQL 1.3.3 has a remote code execution vulnerability allowing attackers to execute arbitrary shell commands through the GraphQL endpoint.

Technical ContextAI

Hasura GraphQL Engine 1.3.3 has a CWE-78 OS command injection vulnerability that allows attackers to inject and execute shell commands through crafted GraphQL queries or metadata operations.

RemediationAI

Upgrade Hasura GraphQL Engine. Restrict access to the GraphQL endpoint. Implement query complexity limits.

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CVE-2021-47748 vulnerability details – vuln.today

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