GHSA-r7cg-qjjm-xhqq
High · 8.2webonyx/graphql-php has unbounded recursion in parser that causes stack overflow on crafted nested input
CVSS
8.2
EPSS
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Published
May 5, 2026
CISA due date
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The record
`GraphQL\Language\Parser` is a recursive descent parser with no recursion depth limit and no `zend.max_allowed_stack_size` interaction. Crafted nested queries trigger a SIGSEGV in the PHP runtime, killing the FPM/CLI worker process. Smallest crashing payload is approximately 74 KB.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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