---
id: CVE-2026-100259
title: >-
  In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt
  chart allowed edits by users with view-only access
summary: >-
  In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt
  chart allowed edits by users with view-only access
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-863
vendor: jetbrains
product: youtrack
affected:
  - youtrack < 2026.2.18991
patched:
  - youtrack 2026.2.18991
published: '2026-09-30'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T20:35:38.773'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100259'
references:
  - url: 'https://www.jetbrains.com/privacy-security/issues-fixed/'
    label: cve@jetbrains.com
tags:
  - nvd
  - cve.org
epss: 0.00193
epssPercentile: 0.08939
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T15:39:00.858524Z'
ingestedAt: '2026-09-30T16:10:07.668Z'
---

## Overview

In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt chart allowed edits by users with view-only access

## Affected

- `youtrack < 2026.2.18991`

## Remediation

Upgrade past the affected range:

- `youtrack 2026.2.18991`