What’s Vulnerable › Vulnerabilities

CVE-2023-0756

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-03 · updated 2026-06-17

Description

An issue has been discovered in GitLab affecting all versions before 15.9.6, all versions starting from 15.10 before 15.10.5, all versions starting from 15.11 before 15.11.1. The main branch of a repository with a specially crafted name allows an attacker to create repositories with malicious code, victims who clone or download these repositories will execute arbitrary code on their systems.

Affected products

• GitLab: before 15.9.6; from 15.10 before 15.10.5; from 15.11 before 15.11.1 — fixed in 15.10.5, 15.11.1, 15.9.6

How to fix

Upgrade to a fixed version: GitLab 15.10.5, 15.11.1, 15.9.6. Check the vendor advisory for mitigations.

References

• https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0756.json
• https://gitlab.com/gitlab-org/gitlab/-/issues/390910
• https://hackerone.com/reports/1864278
• https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0756.json
• https://gitlab.com/gitlab-org/gitlab/-/issues/390910
• https://hackerone.com/reports/1864278

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