CVE-2026-107376 webonyx graphql-php - Denial of Service

webonyx graphql-php < 15.32.3 contains a denial of service caused by lack of recursion limit in parseSelectionSet, parseValueLiteral, and parseTypeReference, letting remote attackers exhaust PHP process stack, exploit requires crafted deeply nested queries.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.45% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Published
8 October 2026
Updated
15 October 2026
Weakness
CWE-674

Vendor fix

Upgrade to version 15.32.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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