CVE-2021-22256 Missing authorization in GitLab
Guest users can improperly create and track Sentry error issues, allowing unauthorized data modification in GitLab.
- 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-2021-22256?
CVE-2021-22256 is a medium-severity missing authorization vulnerability in Gitlab Gitlab, published on 25 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
Weakness: CWE-863
Which versions are affected by CVE-2021-22256?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 12.6.0 | 13.12.9, 14.0.7, 14.1.2 |
Products include Gitlab Gitlab.
How do I fix CVE-2021-22256?
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-2021-22256 being exploited?
There is no known exploitation of CVE-2021-22256 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-2021-22256, GHSA-6xw3-8926-pq6q, UBUNTU-CVE-2021-22256.