---
title: "CVE-2026-3607\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-3607?format=md
keywords: index, follow
---

# CVE-2026-3607

Publication date 14 May 2026

Last updated 21 May 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**4.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2026-3607?format=md#impact-score)

Toggle side navigation

## Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from
18.3 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that
could have allowed an authenticated user with developer-role permissions to
bypass package protection rules due to improper access control.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2026-3607?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| gitlab | 26.04 LTS resolute | Not in release |
| 25.10 questing | Not in release |
| 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release |
| 16.04 LTS xenial | Ignored |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

GitLab isn't maintainable as a distro package, and was removed
from Ubuntu because of this. We will not be fixing security
issues in the gitlab package in Xenial.

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

4.3 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | Low |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | None |
  | Integrity impact | Low |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 4.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3607)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-3607)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-3607)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-3607)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-3607>
* <https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/>
* <https://gitlab.com/gitlab-org/gitlab/-/work_items/592466>
* <https://hackerone.com/reports/3586233>