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Findings

CVE-2026-90970

GitLab AI Gateway Critical Patch Release: 19.2.4, 19.3.2, and 19.4.1

Published Oct 2, 2026 · GitLab GitLab · evidence confidence high

We have released versions 19.2.4, 19.3.2, and 19.4.1 of the GitLab AI Gateway. These versions contain a critical security fix for GitLab Self-Hosted AI Gateway, and we strongly recommend that all GitLab Self-Managed customers with GitLab Self-Hosted AI Gateway installations update to one of these versions immediately. We have conducted targeted outreach to Self-Hosted AI Gateway customers prior to this release post with this guidance. A fix has already been deployed for GitLab-hosted AI Gateways. Customers using GitLab.com, GitLab Dedicated, and GitLab Self-Managed instances using a GitLab-hos

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2026-90970 is a unknown public vulnerability record for GitLab GitLab. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether GitLab GitLab is in your estate, then compare installed versions with the affected ranges. Affected version ranges have not been ingested yet. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: no CVSS/EPSS yet. It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: cve_org, gitlab_releases. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.

  • Patch and remediation

    No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 2, 2026 · GitLab Security Releases

    Detected

    We have released versions 19.2.4, 19.3.2, and 19.4.1 of the GitLab AI Gateway. These versions contain a critical security fix for GitLab Self-Hosted AI Gateway, and we strongly recommend that all GitLab Self-Managed customers with GitLab Self-Hosted AI Gateway installations update to one of these versions immediately. We have conducted targeted outreach to Self-Hosted AI Gateway customers prior to

Sources

  • CVE.orgVulnerability recordCVE-2026-90970

    Official CVE identifier

    cve.org
  • GitLab Security ReleasesVendor advisoryCVE-2026-90970

    We have released versions 19.2.4, 19.3.2, and 19.4.1 of the GitLab AI Gateway. These versions contain a critical security fix for GitLab Self-Hosted AI Gateway, and we strongly recommend that all GitLab Self-Managed customers with GitLab Self-Hosted AI Gateway installations updat

    docs.gitlab.com