Vulnerability Description
github.com/graphql-go/graphql (GraphQL for Go) through 0.8.1 does not validate that a scalar variable value matches its declared type. The built-in coerceString and coerceBool functions (scalars.go) accept input whose type does not match the declared String, ID, or Boolean scalar instead of raising the request error that the GraphQL specification mandates. In some cases (but not any typical case of JSON sent to a website), a deeply nested value leads to an unrecoverable "fatal error: stack overflow" condition.
Related Weaknesses (CWE)
References
- https://github.com/graphql-go/graphql/blob/v0.8.1/scalars.go#L307-L315
- https://www.openwall.com/lists/oss-security/2026/08/25/2
FAQ
What is CVE-2026-80051?
CVE-2026-80051 is a documented vulnerability. github.com/graphql-go/graphql (GraphQL for Go) through 0.8.1 does not validate that a scalar variable value matches its declared type. The built-in coerceString and coerceBool functions (scalars.go) a...
How severe is CVE-2026-80051?
CVSS scoring is not yet available for CVE-2026-80051. Check NVD for updates.
Is there a patch for CVE-2026-80051?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.