{"id":"CVE-2023-26144","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-26144","generatedAt":"2026-10-28T03:31:55.258Z","title":"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.","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.\r\r**Note:** It was not proven that this vulnerability can crash the process.","published":"2023-09-20T05:15:40.000Z","lastModified":"2026-06-17T05:42:47.000Z","status":"Modified","sourceIdentifier":"report@snyk.io","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":["CWE-400"],"affected":["graphql/graphql"],"epss":{"score":0.01454,"percentile":0.73319,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.45%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/graphql/graphql-js/commit/f94b511386c7e47bd0380dcd56553dc063320226","tags":["Patch"],"source":"report@snyk.io"},{"url":"https://github.com/graphql/graphql-js/issues/3955","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"report@snyk.io"},{"url":"https://github.com/graphql/graphql-js/pull/3972","tags":["Product"],"source":"report@snyk.io"},{"url":"https://github.com/graphql/graphql-js/releases/tag/v16.8.1","tags":["Release Notes"],"source":"report@snyk.io"},{"url":"https://security.snyk.io/vuln/SNYK-JS-GRAPHQL-5905181","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"],"source":"report@snyk.io"},{"url":"https://github.com/graphql/graphql-js/commit/f94b511386c7e47bd0380dcd56553dc063320226","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/graphql/graphql-js/issues/3955","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/graphql/graphql-js/pull/3972","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/graphql/graphql-js/releases/tag/v16.8.1","tags":["Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.snyk.io/vuln/SNYK-JS-GRAPHQL-5905181","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-26144","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}