---
id: CVE-2026-1101
title: >-
  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 …
summary: >-
  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 …
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-1284
vendor: gitlab
product: gitlab
affected:
  - 'gitlab >= 18.2, < 18.8.9'
  - 'gitlab >= 18.9.0, < 18.9.5'
  - 'gitlab >= 18.10.0, < 18.10.3'
patched:
  - gitlab 18.10.3
published: '2026-04-08'
updated: '2026-07-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-1101'
references:
  - url: >-
      https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/
    label: cve@gitlab.com
  - url: 'https://gitlab.com/gitlab-org/gitlab/-/work_items/586488'
    label: cve@gitlab.com
  - url: 'https://hackerone.com/reports/3460228'
    label: cve@gitlab.com
tags:
  - nvd
epss: 0.00412
epssPercentile: 0.35209
ingestedAt: '2026-07-26T10:11:58.743Z'
---

## Overview

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.

## Affected

- `gitlab >= 18.2, < 18.8.9`
- `gitlab >= 18.9.0, < 18.9.5`
- `gitlab >= 18.10.0, < 18.10.3`

## Remediation

Upgrade past the affected range:

- `gitlab 18.10.3`