What is CVE-2026-19478?

CVE-2026-19478 is a critical-severity vulnerability in GitLab, classified under Code Injection. CVSS score: 9.4/10. Published 2026-08-17.

How severe is CVE-2026-19478?

Critical severity. CVSS v3 base score is 9.4 out of 10.

RCE in GitLab

CVE-2026-19478

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.

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H.

Affected products

Gitlab — versions 18.2, 19.0, 19.1

Weakness classification (CWE)

CWE-94 — Code Injection

References

cve@gitlab.com
cve@gitlab.com
cve@gitlab.com (technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2026-19478?: CVE-2026-19478 is a critical-severity vulnerability in GitLab, classified under Code Injection. CVSS score: 9.4/10. Published 2026-08-17.
How severe is CVE-2026-19478?: Critical severity. CVSS v3 base score is 9.4 out of 10.