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CVE-2026-19478

GitLab code injection

9.4 CRITICALEPSS 60.2%
  1. Published17 Aug 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Affected products

GitLab≥ 18.2.0 < 18.11.11 · ≥ 19.0.0 < 19.0.8 · ≥ 19.1.0 < 19.1.6 · ≥ 19.2.0 < 19.2.4

Remediation

Fixed in
GitLab≥ 18.11.11

References

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Frequently asked

Is CVE-2026-19478 being actively exploited?

CVE-2026-19478 is not in the CISA KEV catalog. Its EPSS exploit probability is 60.2%.

How severe is CVE-2026-19478?

CVE-2026-19478 has a CVSS 3.1 base score of 9.4, rated critical. EPSS estimates a 60.2% probability of exploitation.

Which products are affected by CVE-2026-19478?

Affected products include GitLab.

How do I fix CVE-2026-19478?

Upgrade affected software to a fixed version, for example GitLab 18.11.11 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-19478 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.