How severe is CVE-2021-47713?

CVE-2021-47713 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-47713 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-47713?

CVE-2021-47713 affects Hasura Graphql Engine. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-47713?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2021-47713 have an EU (EUVD) identifier?

Yes. CVE-2021-47713 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34746.

When was CVE-2021-47713 published?

CVE-2021-47713 was published on 2025-12-22 and last updated on 2026-06-17.

CVE-2021-47713

CVE-2021-47713 is a high-severity vulnerability in Hasura Graphql Engine with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2021-34746
Weakness: CWE-770
Affected product: Hasura Graphql Engine
Published: 2025-12-22
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2021-47713?: CVE-2021-47713 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-47713 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-47713?: CVE-2021-47713 affects Hasura Graphql Engine. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-47713?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2021-47713 have an EU (EUVD) identifier?: Yes. CVE-2021-47713 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34746.
When was CVE-2021-47713 published?: CVE-2021-47713 was published on 2025-12-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hasura:graphql_engine:1.3.3:*:*:*:*:*:*:*

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