# CVE-2026-75871: Server-Side Request Forgery (SSRF) in GitLab AI Gateway

> CVE-2026-75871: Server-Side Request Forgery (SSRF) in GitLab AI Gateway. CVSS 8.2 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-75871
Last updated: 2026-09-01T20:32:55Z

- Published: 2026-08-27 16:33 UTC · Updated: 2026-09-01 20:32 UTC · Assigner: GitLab
- CVSS: 8.2 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
- EPSS: 0.33%, 27th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-918

## Description

GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.10 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 outbound model requests to an externally-controlled endpoint via a crafted inline flow configuration that overrides the HTTP Host header, resulting in disclosure of Google Cloud Vertex cloud service credentials and private signing keys.

## Affected vendors and products

- GitLab: GitLab AI Gateway

## Tracked companies

- [GitLab](https://rewindex.com/company/gitlab.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-75871)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-75871)
- [https://gitlab.com/gitlab-org/gitlab/-/work\_items/616990](https://gitlab.com/gitlab-org/gitlab/-/work_items/616990)
- [https://hackerone.com/reports/3945100](https://hackerone.com/reports/3945100)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-75871 · Markdown: https://rewindex.com/cve/CVE-2026-75871.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-75871 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:18.596Z