CVE-2025-27407

criticalpriority · track · 11EPSS 0.031 · 88 %ileexploit · PoCDEEUNLRUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · PoC
Likely / severe?
3.10% (88th) EPSS
CVSS 9 · critical
Is it mine?
79 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.5–9.1

v3.19criticalAV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.1criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU
v3.19criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · security-advisories@github.comexploitability 2.2 · impact 6
v3.19criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · OSV
v3.18.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)
v3.19criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · NCSC-NL NL
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

exploits (1)

Public proof-of-concept and weaponised exploit code.

05

affected products (79)

Products and version ranges known to be affected.

showing 20 of 79
06

advisories (4)

Vendor and ecosystem advisories describing this.

  • NCSC-2025-0087Kwetsbaarheden verholpen in GitLabNL2025-03-14csaf · ncsc_nlNL

    GitLab heeft kwetsbaarheden verholpen in GitLab EE/CE versies van 11.5 tot 17.9.2.

  • WID-SEC-W-2025-0549GitLab: Mehrere SchwachstellenDeutsch2025-03-12csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um Informationen preiszugeben, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren und einen Denial-of-Service-Zustand zu verursachen.

  • WID-SEC-W-2025-0681Red Hat Satellite: Mehrere SchwachstellenDeutsch2025-04-01csaf · cert_bundDE

    Ein entfernter authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Red Hat Satellite und Red Hat Enterprise Linux ausnutzen, um beliebigen Code auszuführen und vertrauliche Informationen preiszugeben.

  • GHSA-q92j-grw3-h492graphql allows remote code execution when loading a crafted GraphQL schema2025-03-12ghsa · osvUS

    # 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.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

09

references (31)

External citations — patches, advisories, analysis.

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