CVE-2026-5377 Incorrect Authorization in GitLab
Authenticated users can access titles of confidential or private issues in public projects due to improper access control in issue rendering.
- 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-2026-5377?
CVE-2026-5377 is a medium-severity missing authorization vulnerability in Gitlab Gitlab, published on 22 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that could have allowed an authenticated user to access titles of confidential or private issues in public projects due to improper access control in the issue description rendering process.
Weakness: CWE-863
Which versions are affected by CVE-2026-5377?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 18.11.0 | 18.11.1 |
Products include Gitlab Gitlab.
How do I fix CVE-2026-5377?
Upgrade gitlab to 18.11.1 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-5377 being exploited?
There is no known exploitation of CVE-2026-5377 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-2026-5377, GHSA-h2q6-mm6m-cfxp.