CVE-2026-80051CWE-1287

CVE-2026-80051

published August 25, 2026

CVSS
5.9
EPSS
0%
Percentile
3.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
5.9 · NONE
CVSS v4.0
5.9 · 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
EPSS
0.00132 · 3.1th percentile
Weakness
CWE-1287 · Improper Validation of Specified Type of Input
Published
2026-08-25T22:18Z
References (2)
https://github.com/graphql-go/graphql/blob/v0.8.1/scalars.go#L307-L315 · [email protected]https://www.openwall.com/lists/oss-security/2026/08/25/2 · [email protected]
EPSS history
Timeline
  • 27 AUG 06:47Z
    EPSS moved — → 0%
    epss
  • 25 AUG 17:55Z
    github.com/graphql-go/graphql (GraphQL for Go) through 0.8.1 does not validate that a scalar variable value matches its declared type
    cvelistv5