CVE-2023-50730Network attack vector

Service crash via recursive GraphQL query processing

Published Dec 22, 2023 · Updated Aug 2, 2024

Denial of service in Typelevel Grackle before 0.18.0 allows remote attackers to crash GraphQL processing with crafted queries. Fragment validation accepts cycles that overflow the JVM stack during compilation, while non-stack-safe recursive parsing processes deeply nested selections, values, and list types without depth limits. Applications must accept untrusted GraphQL queries; the deeply nested parser route requires no schema knowledge and interrupts availability.

CVSS severity7.5
High
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Typelevel Grackle before 0.18.0 allows remote attackers to crash GraphQL processing with crafted queries. Fragment validation accepts cycles that overflow the JVM stack during compilation, while non-stack-safe recursive parsing processes deeply nested selections, values, and list types without depth limits. Applications must accept untrusted GraphQL queries; the deeply nested parser route requires no schema knowledge and interrupts availability.

The record

CVE
CVE-2023-50730
Published
Dec 22, 2023
Updated
Aug 2, 2024
Vendor
Typelevel
Product
Grackle
Classifications
CWE-400, CWE-770, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.18.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Typelevel · Grackleversion=< 0.18.0

Published CVSS scores

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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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