CVE-2026-4879
Received
Received - Intake
GitLab EE Missing Authorization in Merge Request API
Vulnerability report for CVE-2026-4879, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-08-12
Last updated on: 2026-08-12
Assigner: GitLab Inc.
Description
Description
GitLab has remediated an issue in GitLab EE affecting all versions from 16.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to view external status check configuration restricted to higher-privileged roles due to missing authorization on a merge request API endpoint.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gitlab | gitlab_ee | From 16.0 (inc) to 19.0.6 (exc) |
| gitlab | gitlab_ee | From 19.1 (inc) to 19.1.4 (exc) |
| gitlab | gitlab_ee | From 19.2 (inc) to 19.2.2 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-862 | The product does not perform an authorization check when an actor attempts to access a resource or perform an action. |
