CVE-2020-11506 Server-side request forgery in n/a
Attackers can exploit request smuggling to bypass Workhorse, enabling unauthorized job artifact uploads and sensitive file disclosure in GitLab.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-11506?
CVE-2020-11506 is a high-severity server-side request forgery vulnerability in Gitlab Gitlab, published on 22 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in GitLab 10.7.0 and later through 12.9.2. A Workhorse bypass could lead to job artifact uploads and file disclosure (Exposure of Sensitive Information) via request smuggling.
Weakness: CWE-444
Which versions are affected by CVE-2020-11506?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 10.7.0 | 12.7.9, 12.8.9, 12.9.3 |
Products include Gitlab Gitlab.
How do I fix CVE-2020-11506?
Upgrade gitlab to a fixed version for your release line: 12.7.9, 12.8.9 or 12.9.3.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2020-11506 being exploited?
There is no known exploitation of CVE-2020-11506 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-2020-11506, GHSA-fp74-7pjv-fqcj.