CVE-2021-47713

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.

CVSS v4.0

8.7 HIGHCVSS: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

CVSS v3.1

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

EPSS

0.47% chance of exploitation in the next 30 days, 39th percentile

Published

2025-12-22

Updated

2026-08-14

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/49789

References

• CVE Record
• NVD entry

Related

• CVE-2021-47710
• CVE-2021-47714
• CVE-2021-47709
• CVE-2021-47715
• CVE-2021-47708
• CVE-2021-47716