What’s Vulnerable › Vulnerabilities

CVE-2020-11506

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-22 · updated 2026-06-17
• Weakness: CWE-444

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.

Affected products

• GitLab: from 10.7.0 before 12.7.9; from 10.7.9 before 12.7.9; from 12.8.0 before 12.8.9; from 12.9.0 before 12.9.3 — fixed in 12.7.9, 12.8.9, 12.9.3

How to fix

Upgrade to a fixed version: GitLab 12.7.9, 12.8.9, 12.9.3. Check the vendor advisory for mitigations.

References

• https://about.gitlab.com/blog/categories/releases/
• https://about.gitlab.com/releases/2020/04/14/critical-security-release-gitlab-12-dot-9-dot-3-released/
• https://about.gitlab.com/blog/categories/releases/
• https://about.gitlab.com/releases/2020/04/14/critical-security-release-gitlab-12-dot-9-dot-3-released/

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