GitLab AI Gateway up to 19.0.11/19.1.6/19.2.1 redirect

Summaryinfo

A vulnerability has been found in GitLab AI Gateway up to 19.0.11/19.1.6/19.2.1 and classified as problematic. Affected is an unknown function. This manipulation causes redirect. This vulnerability is registered as CVE-2026-19889. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in GitLab AI Gateway up to 19.0.11/19.1.6/19.2.1 and classified as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. As an impact it is known to affect integrity. The summary by CVE is:

GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.9.0 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect model requests to an externally-controlled endpoint via crafted model metadata, resulting in the disclosure of Google Vertex AI or AWS Bedrock cloud service credentials.

It is possible to read the advisory at gitlab.com. This vulnerability is known as CVE-2026-19889 since 08/14/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK.

Upgrading to version 19.0.12, 19.1.7 or 19.2.2 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Bug Tracking Software

Vendor

• GitLab

Name

• AI Gateway

Version

• 19.0.0
• 19.0.1
• 19.0.2
• 19.0.3
• 19.0.4
• 19.0.5
• 19.0.6
• 19.0.7
• 19.0.8
• 19.0.9
• 19.0.10
• 19.0.11
• 19.1.0
• 19.1.1
• 19.1.2
• 19.1.3
• 19.1.4
• 19.1.5
• 19.1.6
• 19.2.0
• 19.2.1

License

• open-source

Website

• Vendor: https://gitlab.com/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion