CVE-2021-39900 Information disclosure in GitLab
Attackers can view full URLs of object-storage artifacts in Rails logs, potentially exposing sensitive data in GitLab.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-39900?
CVE-2021-39900 is a low-severity vulnerability in Gitlab Gitlab, published on 4 Oct 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Information disclosure from SendEntry in GitLab starting with 10.8 allowed exposure of full URL of artifacts stored in object-storage with a temporary availability via Rails logs.
Weakness: CWE-532
Which versions are affected by CVE-2021-39900?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 10.8.0 | 14.1.7, 14.2.5, 14.3.1 |
Products include Gitlab Gitlab.
How do I fix CVE-2021-39900?
Upgrade gitlab to a fixed version for your release line: 14.1.7, 14.2.5 or 14.3.1.
Is CVE-2021-39900 being exploited?
There is no known exploitation of CVE-2021-39900 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-2021-39900, GHSA-g8p8-2v2x-8mhv, UBUNTU-CVE-2021-39900.