---
title: "CVE-2019-12434\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-2019-12434?format=md
keywords: index, follow
---

# CVE-2019-12434

Publication date 10 March 2020

Last updated 25 August 2025

---

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-2019-12434?format=md#impact-score)

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## Description

An issue was discovered in GitLab Community and Enterprise Edition 10.6
through 11.11. Users could guess the URL slug of private projects through
the contrast of the destination URLs of issues linked in comments. It
allows Information Disclosure.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| gitlab | 19.04 disco | Not in release |
| 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |

---

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

## 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 | Low |
  | Integrity impact | None |
  | 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:L/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12434)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-12434)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-12434)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-12434)

### Other references

* <https://about.gitlab.com/2019/06/03/security-release-gitlab-11-dot-11-dot-1-released/>
* <https://www.cve.org/CVERecord?id=CVE-2019-12434>