Local File Read Vulnerability in Hasura GraphQL by Hasura
CVE-2021-47714

6.9MEDIUM

Key Information:

Vendor

Hasura

Status
Hasura Graphql
Vendor
CVE Published:
22 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47714?

Hasura GraphQL 1.3.3 contains a vulnerability that permits local file reading via SQL injection on the query endpoint. By exploiting the pg_read_file() function in PostgreSQL, attackers can craft malicious SQL queries to access sensitive files stored on the server. This results in unauthorized disclosure of information, heightening the risk of data leaks.

Affected Version(s)

Hasura GraphQL 1.3.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47714 - Proof of Concept

References

https://www.exploit-db.com/exploits/49790
exploit
https://github.com/hasura/graphql-engine
product
https://www.vulncheck.com/advisories/hasura-graphql-local...
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dolev Farhi
.