GHSA-q92j-grw3-h492 · Severity: critical · Ecosystem: rubygems — graphql allows remote code execution when loading a crafted GraphQL schema
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.
Conclusion & alert: CVE-2025-27407 is rated Moderate Risk (63.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.36%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-20 | 1.64% | 1.36% | -0.28% |
| 2 | 2026-03-04 | 0.58% | 1.64% | +1.06% |
| 3 | 2026-03-01 | — | 0.58% | — |
Full EPSS history (44 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.0 | 3.1 | CRITICAL |
|
2.2 | 6.0 | [email protected] |
GHSA-q92j-grw3-h492 · Severity: critical · Ecosystem: rubygems — graphql allows remote code execution when loading a crafted GraphQL schema
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2025-27407 not yet assigned priority: Debian including 1 source packages (ruby-graphql), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. | https://security-tracker.debian.org/tracker/CVE-2025-27407 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2025-27407 |
ubuntu
|
medium | CVE-2025-27407 medium priority: Ubuntu including 1 source packages (ruby-graphql), 7 status rows across 7 suites (focal, jammy, noble, oracular, plucky, questing, upstream): needs-triage 5, ignored 2. | https://ubuntu.com/security/CVE-2025-27407 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||