GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.1.6 before 19.2.4, 19.3 before 19.3.2, and 19.4 before 19.4.1 that, under certain conditions, could have allowed an authenticated user with Duo Agent Platform access to escape the prompt template sandbox via a specially crafted flow configuration, resulting in arbitrary command execution on the AI Gateway.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
GitLab GitLab AI Gateway unaffected
Version Status Constraints
18.1.6 affected < 19.2.4
19.3 affected < 19.3.2
19.4 affected < 19.4.1

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Gitlab Subscribe
Ai-gateway Subscribe
Advisories

No advisories yet.

Fixes

Solution

Upgrade to version 19.2.4, 19.3.2, 19.4.1 or above.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gitlab.com/gitlab-org/gitlab/-/work_items/628842 cve-icon
History

Fri, 02 Oct 2026 14:45:00 +0000

Type Values Removed Values Added
Description GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.1.6 before 19.2.4, 19.3 before 19.3.2, and 19.4 before 19.4.1 that, under certain conditions, could have allowed an authenticated user with Duo Agent Platform access to escape the prompt template sandbox via a specially crafted flow configuration, resulting in arbitrary command execution on the AI Gateway.
Title Improper Neutralization of Special Elements Used in a Template Engine in GitLab AI Gateway
First Time appeared Gitlab
Gitlab ai-gateway
Weaknesses CWE-1336
CPEs cpe:2.3:a:gitlab:ai-gateway:*:*:*:*:*:*:*:*
Vendors & Products Gitlab
Gitlab ai-gateway
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-10-02T14:34:49.558Z

Reserved: 2026-09-14T13:37:05.263Z

Link: CVE-2026-90970

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses