# CVE-2026-12635

## Summary

- **CVE ID:** CVE-2026-12635
- **Severity:** UNKNOWN
- **CVSS Score:** 0 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:N)
- **CWE:** CWE-350
- **Published:** Jun 25, 2026
- **Last Modified:** Jun 25, 2026

## Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with maintainer-role permissions to make requests to internal network resources through mirror synchronization due to improper URL validation.

## Affected Products

- GitLab — GitLab (8.3)
- GitLab — GitLab (19.0)
- GitLab — GitLab (19.1)

## References

- [CNA](https://gitlab.com/gitlab-org/gitlab/-/work_items/594321)
- [CNA](https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.25%
- **EPSS Percentile:** 16.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._