CVE-2026-19478

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could allow an unauthenticated user to remotely modify or delete public projects and user data via a GraphQL directive.

CVSS Metrics

• v3.1•CRITICAL•Score: 9.4CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

EPSS Trends

Current EPSS score: 1.51%• Percentile: 72%

Techniques & Countermeasures

• CWE-94•Improper Control of Generation of Code ('Code Injection')

  The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Affected Systems

• gitlab•gitlab

  ≥ 18.2, < 18.11.11 | ≥ 19.0, < 19.0.8 | ≥ 19.1, < 19.1.6 | ≥ 19.2, < 19.2.4

References (3)

• https://gitlab.com/gitlab-org/gitlab/-/work_items/611377
• https://hackerone.com/reports/3926431
• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-4-released/