What’s Vulnerable › Vulnerabilities

CVE-2023-1210: Generation of Error Message Containing Sensitive Information in GitLab

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-02 · updated 2026-06-17
• Weakness: CWE-209

Description

An issue has been discovered in GitLab affecting all versions starting from 12.9 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. It was possible to leak a user's email via an error message for groups that restrict membership by email domain.

Affected products

• GitLab: from 12.9 before 16.0.8; from 16.1 before 16.1.3; from 16.2 before 16.2.2 — fixed in 16.0.8, 16.1.3, 16.2.2

How to fix

Upgrade to a fixed version: GitLab 16.0.8, 16.1.3, 16.2.2. Check the vendor advisory for mitigations.

References

• https://gitlab.com/gitlab-org/gitlab/-/issues/394775
• https://hackerone.com/reports/1884672
• https://gitlab.com/gitlab-org/gitlab/-/issues/394775
• https://hackerone.com/reports/1884672

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