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CVE-2025-27407— Remote code execution when loading a crafted GraphQL schema

Quick assessment

Affected
rmosolgo graphql-ruby
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GraphQL是GraphQL开源的一个开源的，面向API而创造出来的数据查询操作语言以及相应的运行环境。 GraphQL存在安全漏洞，该漏洞源于加载恶意模式定义可能导致远程代码执行。

CVSS 9.1 · Critical EPSS 3.05% · P87

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-27407

Vulnerability Information
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Vulnerability Title
Remote code execution when loading a crafted GraphQL schema
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
GraphQL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GraphQL是GraphQL开源的一个开源的，面向API而创造出来的数据查询操作语言以及相应的运行环境。 GraphQL存在安全漏洞，该漏洞源于加载恶意模式定义可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
rmosolgo graphql-ruby >= 1.11.5, < 1.11.8 -

II. Public POCs for CVE-2025-27407

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8609 chars
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III. Intelligence Information for CVE-2025-27407

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Patches & Fixes for CVE-2025-27407 (7)

Vendor Advisories for CVE-2025-27407 (1)

IV. Related Vulnerabilities

Same weakness: CWE-94

V. Comments for CVE-2025-27407

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