# CVE-2021-47713: Hasura GraphQL 1.3.3 Denial of Service via Malicious GraphQL Query

> CVE-2021-47713: Hasura GraphQL 1.3.3 Denial of Service via Malicious GraphQL Query. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2021-47713
Last updated: 2026-08-14T16:49:17Z

- Published: 2025-12-22 21:35 UTC · Updated: 2026-08-14 16:49 UTC · Assigner: VulnCheck
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.48%, 41th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-770

## 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.

## Affected vendors and products

- Hasura: Hasura GraphQL

## Tracked companies

- [Hasura](https://rewindex.com/company/hasura.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-47713)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2021-47713)
- [https://github.com/hasura/graphql-engine](https://github.com/hasura/graphql-engine)
- [https://www.exploit-db.com/exploits/49789](https://www.exploit-db.com/exploits/49789)
- [https://www.vulncheck.com/advisories/hasura-graphql-denial-of-service-via-malicious-graphql-query](https://www.vulncheck.com/advisories/hasura-graphql-denial-of-service-via-malicious-graphql-query)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2021-47713 · Markdown: https://rewindex.com/cve/CVE-2021-47713.md · JSON: https://rewindex.com/api/v1/cves/CVE-2021-47713 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:46:01.370Z