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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-674"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107376.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "15.32.3"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "6c1d6009a0f7557f66753bcfd07badd15acf77f4"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "7b7f2080ca5f7d5340a696fc5701b19a9222d2c2"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v15.32.3",
"range": [
{
"fixed": "993bf0bea17f870412ad8a90f60c41cb8d5f1145"
}
],
"source": "REFERENCES_TAG"
}
]
}