---
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
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T16:44:39.840'
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
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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.