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` (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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.031 (87.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.031 · change: +0.001
Affected products
- Rmosolgo Graphql-Ruby — versions >= 1.11.5, < 1.11.8, >= 1.12.0, < 1.12.25, >= 1.13.0, < 1.13.24
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/rmosolgo/graphql-ruby/security/advisories/GHSA-q92j-grw3-h492
- github.com/rmosolgo/graphql-ruby/commit/28233b16c0eb9d0fb7808f4980e061dc7507c4cd
- github.com/rmosolgo/graphql-ruby/commit/2d2f4ed1f79472f8eed29c864b039649e1de238f
- github.com/rmosolgo/graphql-ruby/commit/5c5a7b9a9bdce143be048074aea50edb7bb747be
- github.com/rmosolgo/graphql-ruby/commit/6eca16b9fa553aa957099a30dbde64ddcdac52ca
- github.com/rmosolgo/graphql-ruby/commit/d0963289e0dab4ea893bbecf12bb7d89294957bb
- github.com/rmosolgo/graphql-ruby/commit/d1117ae0361d9ed67e0795b07f5c3e98e62f3c7c
- github.com/rmosolgo/graphql-ruby/commit/e3b33ace05391da2871c75ab4d3b66e29133b367
- about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released
- github.com/github-community-projects/graphql-client
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.