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.
Does this matter?
Lower severity and a low EPSS score (1.45%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 1.45% probability · 73th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- graphql/graphql
- Source
- report@snyk.io
EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/graphql/graphql-js/commit/f94b511386c7e47bd0380dcd56553dc063320226Patch
- https://github.com/graphql/graphql-js/issues/3955Exploit, Issue Tracking, Third Party Advisory
- https://github.com/graphql/graphql-js/pull/3972Product
- https://github.com/graphql/graphql-js/releases/tag/v16.8.1Release Notes
- https://security.snyk.io/vuln/SNYK-JS-GRAPHQL-5905181Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/graphql/graphql-js/commit/f94b511386c7e47bd0380dcd56553dc063320226Patch
- https://github.com/graphql/graphql-js/issues/3955Exploit, Issue Tracking, Third Party Advisory
- https://github.com/graphql/graphql-js/pull/3972Product
- https://github.com/graphql/graphql-js/releases/tag/v16.8.1Release Notes
- https://security.snyk.io/vuln/SNYK-JS-GRAPHQL-5905181Exploit, Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.