How severe is CVE-2023-26144?

CVE-2023-26144 has a CVSS 3.x base score of 5.3, rated medium 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 low.

Is CVE-2023-26144 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26144?

CVE-2023-26144 primarily affects Graphql. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-26144?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-26144 published?

CVE-2023-26144 was published on 2023-09-20 and last updated on 2026-06-17.

CVE-2023-26144

CVE-2023-26144 is a medium-severity vulnerability in Graphql with a CVSS 3.x base score of 5.3. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Graphql
Published: 2023-09-20
Last modified: 2026-06-17

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.

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.
How severe is CVE-2023-26144?: CVE-2023-26144 has a CVSS 3.x base score of 5.3, rated medium 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 low.
Is CVE-2023-26144 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26144?: CVE-2023-26144 primarily affects Graphql. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-26144?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-26144 published?: CVE-2023-26144 was published on 2023-09-20 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:graphql:graphql:*:*:*:*:*:node.js:*:*
cpe:2.3:a:graphql:graphql:17.0.0:alpha1:*:*:*:node.js:*:*
cpe:2.3:a:graphql:graphql:17.0.0:alpha2:*:*:*:node.js:*:*

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