RCE in Rmosolgo Graphql-ruby

CVE-2025-27407

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`…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.029 (85.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-27407?
CVE-2025-27407 is a critical-severity vulnerability in Rmosolgo Graphql-ruby, classified under Code Injection. CVSS score: 9.0/10. Published 2025-03-12.
How severe is CVE-2025-27407?
Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2025-27407 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.