CVE-2021-47713

8.7 highEPSS 0.5%

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.

Severity

CVSS 4.0

8.7 high

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

CVSS 3.1

7.5 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)
CWE: CWE-770
Published: 2025-12-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

hasura:graphql_engine

References

https://github.com/hasura/graphql-engine
https://www.exploit-db.com/exploits/49789
https://www.vulncheck.com/advisories/hasura-graphql-denial-of-service-via-malicious-graphql-query

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