---
title: "CVE-2022-4255\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-2022-4255?format=md
keywords: index, follow
---

# CVE-2022-4255

Publication date 27 January 2023

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2022-4255?format=md#impact-score)

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## Description

An info leak issue was identified in all versions of GitLab EE from 13.7
prior to 15.4.6, 15.5 prior to 15.5.5, and 15.6 prior to 15.6.1 which
exposes user email id through webhook payload.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2022-4255?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| gitlab | 22.10 kinetic | Not in release |
| 22.04 LTS jammy | Not in release |
| 20.04 LTS focal | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Ignored end of standard support |

---

* [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

---

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

Only affects Gitlab Enterprise Edition, not gitlab in Ubuntu

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.3 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-4255)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-4255)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-4255)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-4255)

### Other references

* <https://gitlab.com/gitlab-org/gitlab/-/issues/373819>
* <https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-4255.json>
* <https://www.cve.org/CVERecord?id=CVE-2022-4255>