CVE-2026-3855: Improper Control of Resource Identifiers ('Resource Injection') in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2.7 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an authenticated user with project-level permissions to access restricted file contents on the server or cause denial of service due to improper validation of parameters in the Terraform state upload functionality.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 19.1.8 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 19.2.6 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 19.3.2
Event History
Frequently Asked Questions
Which GitLab deployments are affected?
GitLab CE and EE are affected if running versions from 18.2.7 before 19.1.8, 19.2 before 19.2.6, or 19.3 before 19.3.2. The issue is in Terraform state upload functionality.
What access does an attacker need?
An attacker must be authenticated and have project-level permissions. Exploitation also requires unspecified conditions, reflected in the high attack-complexity rating.
What could exploitation allow?
Under certain conditions, an affected user could access restricted file contents on the server or cause denial of service. The reported impact is limited to confidentiality; no integrity impact is identified.