peter bassill · operator
$ cve CVE-2025-27407 JSON

CVE-2025-27407

9.0
CRITICAL · CVSS 3.1 · EPSS 3.1% (pctl 87)

In your normal cycle

Critical by CVSS (9), but no sign of active exploitation.

Description

graphql-ruby is a Ruby implementation of GraphQL. Starting in version 1.11.5 and prior to versions 1.11.8, 1.12.25, 1.13.24, 2.0.32, 2.1.14, 2.2.17, and 2.3.21, loading a malicious schema definition in `GraphQL::Schema.from_introspection` (or `GraphQL::Schema::Loader.load`) can result in remote code execution. Any system which loads a schema by JSON from an untrusted source is vulnerable, including those that use GraphQL::Client to load external schemas via GraphQL introspection. Versions 1.11.8, 1.12.25, 1.13.24, 2.0.32, 2.1.14, 2.2.17, and 2.3.21 contain a patch for the issue.

Scoring

CVSS9.0 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS3.1% — more likely to be exploited than 87% of all CVEs
WeaknessCWE-94
On CISA KEVno
Public exploitnone known
Published2025-03-12
Last modified2026-06-17

References

→ the Explorer  ·  watch your stack  ·  NVD