CVE-2026-107376
highwebonyx graphql-php is a PHP implementation of the GraphQL specification.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/webonyx/graphql-php/commit/6c1d6009a0f7557f66753bcfd07badd15acf77f4 security-advisories@github.com
- https://github.com/webonyx/graphql-php/commit/7b7f2080ca5f7d5340a696fc5701b19a9222d2c2 security-advisories@github.com
- https://github.com/webonyx/graphql-php/releases/tag/v15.32.3 security-advisories@github.com
- https://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq security-advisories@github.com
- https://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq 134c704f-9b21-4f2e-91b3-4a467353bcc0