---
id: CVE-2026-100262
title: >-
  In JetBrains YouTrack before 2026.2.18991 missing authorisation allowed users
  with read-only project access to overwrite project notification templates
summary: >-
  In JetBrains YouTrack before 2026.2.18991 missing authorisation allowed users
  with read-only project access to overwrite project notification templates
severity: high
cvss: 7.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L'
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: '2026-10-02T20:25:39.570'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100262'
references:
  - url: 'https://www.jetbrains.com/privacy-security/issues-fixed/'
    label: cve@jetbrains.com
tags:
  - nvd
  - cve.org
epss: 0.00211
epssPercentile: 0.11338
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T15:38:29.998536Z'
ingestedAt: '2026-09-30T16:10:07.715Z'
---

## Overview

In JetBrains YouTrack before 2026.2.18991 missing authorisation allowed users with read-only project access to overwrite project notification templates

## Affected

- `youtrack < 2026.2.18991`

## Remediation

Upgrade past the affected range:

- `youtrack 2026.2.18991`