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

> CVE-2025-27407: Remote code execution when loading a crafted GraphQL schema. CVSS 9.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-27407
Last updated: 2026-06-17T09:03:31Z

- Published: 2025-03-12 18:15 UTC · Updated: 2026-06-17 09:03 UTC · Assigner: GitHub\_M
- CVSS: 9.1 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS: 3.1%, 88th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-94

## 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.

## Affected vendors and products

- rmosolgo: graphql-ruby

## Tracked companies

- [GitLab](https://rewindex.com/company/gitlab.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-27407)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-27407)
- [https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released](https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released)
- [https://github.com/github-community-projects/graphql-client](https://github.com/github-community-projects/graphql-client)
- [https://github.com/rmosolgo/graphql-ruby/commit/28233b16c0eb9d0fb7808f4980e061dc7507c4cd](https://github.com/rmosolgo/graphql-ruby/commit/28233b16c0eb9d0fb7808f4980e061dc7507c4cd)
- [https://github.com/rmosolgo/graphql-ruby/commit/2d2f4ed1f79472f8eed29c864b039649e1de238f](https://github.com/rmosolgo/graphql-ruby/commit/2d2f4ed1f79472f8eed29c864b039649e1de238f)
- [https://github.com/rmosolgo/graphql-ruby/commit/5c5a7b9a9bdce143be048074aea50edb7bb747be](https://github.com/rmosolgo/graphql-ruby/commit/5c5a7b9a9bdce143be048074aea50edb7bb747be)
- [https://github.com/rmosolgo/graphql-ruby/commit/6eca16b9fa553aa957099a30dbde64ddcdac52ca](https://github.com/rmosolgo/graphql-ruby/commit/6eca16b9fa553aa957099a30dbde64ddcdac52ca)
- [https://github.com/rmosolgo/graphql-ruby/commit/d0963289e0dab4ea893bbecf12bb7d89294957bb](https://github.com/rmosolgo/graphql-ruby/commit/d0963289e0dab4ea893bbecf12bb7d89294957bb)
- [https://github.com/rmosolgo/graphql-ruby/commit/d1117ae0361d9ed67e0795b07f5c3e98e62f3c7c](https://github.com/rmosolgo/graphql-ruby/commit/d1117ae0361d9ed67e0795b07f5c3e98e62f3c7c)
- [https://github.com/rmosolgo/graphql-ruby/commit/e3b33ace05391da2871c75ab4d3b66e29133b367](https://github.com/rmosolgo/graphql-ruby/commit/e3b33ace05391da2871c75ab4d3b66e29133b367)
- [https://github.com/rmosolgo/graphql-ruby/security/advisories/GHSA-q92j-grw3-h492](https://github.com/rmosolgo/graphql-ruby/security/advisories/GHSA-q92j-grw3-h492)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-27407 · Markdown: https://rewindex.com/cve/CVE-2025-27407.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-27407 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:13.675Z