CVE-2021-22251 Missing authorization in GitLab
Attackers can bypass group email domain restrictions to add unauthorized members to projects in GitLab Enterprise Edition.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-22251?
CVE-2021-22251 is a medium-severity missing authorization vulnerability in Gitlab Gitlab, published on 23 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper validation of invited users' email address in GitLab EE affecting all versions since 12.2 allowed projects to add members with email address domain that should be blocked by group settings
Weakness: CWE-863
Which versions are affected by CVE-2021-22251?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 12.2.0 | 13.12.9, 14.0.7, 14.1.2 |
Products include Gitlab Gitlab.
How do I fix CVE-2021-22251?
Upgrade gitlab to a fixed version for your release line: 13.12.9, 14.0.7 or 14.1.2.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-22251 being exploited?
There is no known exploitation of CVE-2021-22251 in the wild and no public exploit code.
Other vulnerabilities in Gitlab Gitlab
- CVE-2026-97229 GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound
- CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal
- CVE-2023-7028 GitLab Community and Enterprise Editions Improper Access Control
- CVE-2021-22205 GitLab Community and Enterprise Editions Remote Code Execution
- CVE-2021-39935 GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF)
Sources
Also known as BIT-gitlab-2021-22251, GHSA-5f6w-rj6x-7j7v, UBUNTU-CVE-2021-22251.