---
title: "CVE-2026-1101\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-2026-1101?format=md
keywords: index, follow
---

# CVE-2026-1101

Publication date 8 April 2026

Last updated 16 April 2026

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**6.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2026-1101?format=md#impact-score)

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## Description

GitLab has remediated an issue in GitLab EE affecting all versions from
18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could
have allowed an authenticated user to cause denial of service to the GitLab
instance due to improper input validation in GraphQL queries.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2026-1101?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| gitlab | 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**

6.5 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 6.5 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-1101)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-1101)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-1101)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-1101)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-1101>
* <https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/>
* <https://gitlab.com/gitlab-org/gitlab/-/work_items/586488>
* <https://hackerone.com/reports/3460228>