CVE-2026-19478: Gitlab | defend.network

What is 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.

CVSS9.1 NVD 3.1

SeverityCRITICAL

Exploitation In the wild

EPSS6% · P93

Triage statusActive Exploit

ActionPatch within 48 hours

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CWECWE-94

NVD published2026-08-17

NVD last modified2026-09-02

Timeline

2026-08-17Published to the U.S. National Vulnerability Database (NVD)
2026-09-02NVD record last updated

Affected product

Gitlab

Remediation Steps

Apply the latest GitLab security patch addressing CVE-2026-19478 immediately
Review audit logs for evidence of unauthorized project modifications or deletions
Restrict public project visibility to trusted users pending patch deployment
Monitor GitLab instances for suspicious code injection activity

References

Referenced in our briefings & reports

Vulnerability Priority Report – Week 4 of August 2026 (August 24 – 30)
Vulnerability Priority Report – Week 3 of August 2026 (August 17 – 23)

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🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.