CVE-2021-47713

Name: CVE-2021-47713
Creator: NVD / NIST
Published: 2025-12-22T22:15:58.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2021-47713 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. Hasura GraphQL 1.3.3 contains a denial of service vulnerability that allows attackers to overwhelm the service by crafting malicious GraphQL queries with excessive nested fields. Attackers can send repeated requests with extremely long query strings and multiple threads to consume server resources and potentially crash the GraphQL endpoint.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

Hasura GraphQL 1.3.3 contains a denial of service vulnerability that allows attackers to overwhelm the service by crafting malicious GraphQL queries with excessive nested fields. Attackers can send repeated requests with extremely long query strings and multiple threads to consume server resources and potentially crash the GraphQL endpoint.

Metrics

CVSS 3.1

7.5/10

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

CVSS 4.0

8.7/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/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

EPSS Probability

0.40%

32.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Hasura	Graphql Engine	1.3.3

References

https://github.com/hasura/graphql-engineProduct
https://www.exploit-db.com/exploits/49789Exploit
https://www.vulncheck.com/advisories/hasura-graphql-denial-of-service-via-malicious-graphql-queryExploit, Third Party Advisory

Timeline

Published: Dec 22, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2021-47713?

How severe is CVE-2021-47713?

CVE-2021-47713 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2021-47713?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-47713?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST