CVE-2026-107376
webonyx graphql-php is a PHP implementation of the GraphQL specification
- Risk score
- 72/100
- CVSS
- 8.2 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 8 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 …
- Affected
- See advisory
- Fix
- Upgrade the product to 15.32.3 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 8.2 high
- Remotely exploitable without logging in
- On your watchlist: php
References
- https://github.com/webonyx/graphql-php/commit/6c1d6009a0f7557f66753bcfd07badd15acf77f4
- https://github.com/webonyx/graphql-php/commit/7b7f2080ca5f7d5340a696fc5701b19a9222d2c2
- https://github.com/webonyx/graphql-php/releases/tag/v15.32.3
- https://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq
- https://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq
Original 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.
Last activity 8 Oct 2026. Patch Forecast updates every hour.