{"id":"CVE-2026-107376","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-107376","generatedAt":"2026-10-28T01:02:49.463Z","title":"A remote attacker can submit deeply nested selection sets, object or list values, or list types that exhaust the PHP process stack during pre-validation parsing, before query validation and complexity controls run.","description":"webonyx graphql-php is a PHP implementation of the GraphQL specification. Prior to 15.32.3, GraphQL\\Language\\Parser performs recursive descent without a recursion limit in parseSelectionSet, parseValueLiteral, and parseTypeReference. A remote attacker can submit deeply nested selection sets, object or list values, or list types that exhaust the PHP process stack during pre-validation parsing, before query validation and complexity controls run. The resulting SIGSEGV can terminate PHP-FPM workers or long-running Swoole, RoadRunner, ReactPHP, or CLI processes and cannot be caught by application-level exception handling. This issue is fixed in version 15.32.3.","published":"2026-10-08T18:17:22.000Z","lastModified":"2026-10-08T21:34:49.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},"cwe":["CWE-674"],"affected":[],"epss":{"score":0.00449,"percentile":0.38755,"date":"2026-10-26","history":[{"date":"2026-10-09","score":0.00449,"percentile":0.37051}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-08T18:17:22.000Z","detail":{"score":"8.2","severity":"HIGH","publishedAt":"2026-10-08T18:17:22.373Z"},"summary":"New CVE, high severity (CVSS 8.2)."}],"references":[{"url":"https://github.com/webonyx/graphql-php/commit/6c1d6009a0f7557f66753bcfd07badd15acf77f4","source":"security-advisories@github.com"},{"url":"https://github.com/webonyx/graphql-php/commit/7b7f2080ca5f7d5340a696fc5701b19a9222d2c2","source":"security-advisories@github.com"},{"url":"https://github.com/webonyx/graphql-php/releases/tag/v15.32.3","source":"security-advisories@github.com"},{"url":"https://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq","source":"security-advisories@github.com"},{"url":"https://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107376","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."}