critical9.0
CVE-2025-27407
graphql allows remote code execution when loading a crafted GraphQL schema
Impact
# Summary 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](https://github.com/github-community-projects/graphql-client) to load external schemas via GraphQL introspection.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rubygems | graphql | >= 2.4.0, < 2.4.13 | 2.4.13 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- 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/rmosolgo/graphql-ruby/commit/28233b16c0eb9d0fb7808f4980e061dc7507c4cd
- https://github.com/rmosolgo/graphql-ruby/commit/2d2f4ed1f79472f8eed29c864b039649e1de238f
- https://github.com/rmosolgo/graphql-ruby/commit/5c5a7b9a9bdce143be048074aea50edb7bb747be
- https://github.com/rmosolgo/graphql-ruby/commit/6eca16b9fa553aa957099a30dbde64ddcdac52ca
- https://github.com/rmosolgo/graphql-ruby/commit/d0963289e0dab4ea893bbecf12bb7d89294957bb
- https://github.com/rmosolgo/graphql-ruby/commit/d1117ae0361d9ed67e0795b07f5c3e98e62f3c7c
- https://github.com/rmosolgo/graphql-ruby/commit/e3b33ace05391da2871c75ab4d3b66e29133b367
- https://github.com/rmosolgo/graphql-ruby/security/advisories/GHSA-q92j-grw3-h492
- https://lists.debian.org/debian-lts-announce/2025/08/msg00002.html
- https://github.com/advisories/GHSA-q92j-grw3-h492
- https://github.com/rmosolgo/graphql-ruby/commit/e58676c70aa695e3052ba1fbc787efee4ba7d67e
- https://nvd.nist.gov/vuln/detail/CVE-2025-27407
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/graphql/CVE-2025-27407.yml