---
id: CVE-2026-100275
title: >-
  In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error
  notification toast was possible
summary: >-
  In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error
  notification toast was possible
severity: medium
cvss: 6.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N'
cwe:
  - CWE-79
vendor: jetbrains
product: youtrack
affected:
  - youtrack < 2026.2.19197
patched:
  - youtrack 2026.2.19197
published: '2026-09-30'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T15:42:06.193'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100275'
references:
  - url: 'https://www.jetbrains.com/privacy-security/issues-fixed/'
    label: cve@jetbrains.com
tags:
  - nvd
  - cve.org
epss: 0.0019
epssPercentile: 0.08798
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T15:31:57.461525Z'
ingestedAt: '2026-09-30T16:10:07.758Z'
---

## Overview

In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error notification toast was possible

## Affected

- `youtrack < 2026.2.19197`

## Remediation

Upgrade past the affected range:

- `youtrack 2026.2.19197`