Vulnerability · Published Aug 25, 2026 · Assigned by mitre
CVE-2026-80051
Medium 5.9
In plain English
A medium-severity security flaw in graphql-go from graphql-go project. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| graphql-go project | graphql-go | 0 – through 0.8.1 |
Weakness: CWE-1287 · Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N