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MEDIUM

CVE-2023-26144

CVSS v3

5.3

MEDIUM

EPSS Score

1.5 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • graphqlnpmfrom 16.3.0 · fixed in 16.8.1

Vendor advisories

  • CVE-2023-26144 Red Hat Product Security4 products fixed · 6 known affected

    graphql: Insufficient checks in the OverlappingFieldsCanBeMergedRule.ts file when parsing large queries

    graphql as a component of OpenShift Serverless · rhacm2/search-api-rhel8 as a component of Red Hat Advanced Cluster Management for Kubernetes 2 · advanced-cluster-security/rhacs-main-rhel8 as a component of Red Hat Advanced Cluster Security 3

  • RHSA-2024:1570 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: ACS 4.4 enhancement and security update

  • RHBA-2023:6078 Red Hat Product Security1 product fixed

    Red Hat Bug Fix Advisory: MTV 2.5.2 Images

Full record on NVD

Description

Versions of the package graphql from 16.3.0 and before 16.8.1 are vulnerable to Denial of Service (DoS) due to insufficient checks in the OverlappingFieldsCanBeMergedRule.ts file when parsing large queries. This vulnerability allows an attacker to degrade system performance. **Note:** It was not proven that this vulnerability can crash the process.

Technical details

Published
2023-09-20

Frequently asked questions

What is CVE-2023-26144?

Versions of the package graphql from 16.3.0 and before 16.8.1 are vulnerable to Denial of Service (DoS) due to insufficient checks in the OverlappingFieldsCanBeMergedRule.ts file when parsing large queries. This vulnerability allows an attacker to degrade system performance. **Note:** It was not proven that this vulnerability can crash the process.

Is CVE-2023-26144 actively exploited?

Active exploitation of CVE-2023-26144 has not been confirmed. Its EPSS score was 1.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-26144?

CVE-2023-26144 has a CVSS v3 base score of 5.3 (MEDIUM severity).

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